Volume Discount Pricing: Complete Guide to Increasing AOV with Tiered Discounts
Learn how to implement volume discount strategies that increase average order value by 25-40%. Master tiered pricing, BOGO offers, and psychological pricing tactics that turn single-item buyers into bulk purchasers.
The Power of Volume Pricing
A coffee subscription company selling bags at $18 each implemented "Buy 3 for $48 (save $6)" and watched their average order value jump from $36 (2 bags) to $48 (3 bags) within two weeks—a 33% increase with zero additional marketing spend.
Quick Answer
Volume discounts are pricing strategies that offer lower per-unit prices when customers buy larger quantities. Example: Buy 1 for $20, buy 3 for $54 ($18 each, 10% savings). They increase average order value by 25-40% on average and work better than flat discounts because they reward desired behavior (buying more) instead of training customers to wait for sales.
Volume discounts tap into one of the most powerful forces in consumer psychology: the feeling of winning. When customers see "Buy 3, Save 15%" they don't just see a discount—they see an achievement to unlock, a game to win, a deal to capture. This gamification of purchasing transforms buying behavior in ways that simple percentage-off coupons never could.
The mathematics are straightforward: if a customer was planning to buy two items and your volume discount convinces them to buy three, you've increased revenue by 50% from that customer. But the psychology is what makes volume discounts so effective—they make customers feel smart for spending more, not guilty.
This guide breaks down everything you need to know about volume discount strategies: the psychology behind why they work, proven tier structures that drive results, implementation tactics for Shopify, and real-world examples from stores using volume pricing to increase AOV by 25-40%.
📋 Table of Contents
Why Volume Discounts Outperform Standard Discounts
Most stores use discounts the wrong way. A sitewide "15% off everything" sale trains customers to wait for discounts and erodes brand value. Volume discounts are different—they reward behavior you want (buying more) while maintaining perceived value of your products.
The Psychology of Unlocking Value
Consider two scenarios. Scenario A: A customer sees "15% off sitewide." They buy one protein bar for $2.55 (down from $3). Scenario B: The same customer sees "Buy 3 bars, get 15% off." They buy three bars for $7.65 (down from $9).
Same discount percentage. But in Scenario A, you made $2.55 in revenue. In Scenario B, you made $7.65—three times more revenue from the same customer with the same discount rate. The difference? Volume discounts incentivize buying more to unlock the savings.
A supplement brand tested this exact scenario. Their flat "15% off" sales generated an average order of $32. When they switched to tiered volume discounts (10% off 2 items, 15% off 3+ items), average orders increased to $47—a 47% revenue increase per customer. The secret wasn't a deeper discount; it was tying the discount to quantity.
Loss Aversion and the Fear of Missing Out
Behavioral economics research shows loss aversion is approximately twice as powerful as gain motivation. People hate leaving money on the table more than they love getting deals. Volume discounts exploit this beautifully.
When a customer has two items in their cart and sees "Add one more item to unlock 15% off your entire order," they're not thinking "I could save $2." They're thinking "If I don't add another item, I'm losing $2." The psychological framing shifts from optional gain to avoided loss.
A home goods store implemented cart messaging showing how much customers were "leaving on the table" by not reaching the next discount tier. "Add $12 more to unlock $8 in savings" converted 31% of customers to add extra items. The messaging emphasized what they'd lose (the $8 savings) rather than what they'd gain (the products).
Tiered Pricing Structures That Drive Results
Not all volume discount structures perform equally. The key is creating tiers that feel achievable, meaningful, and progressively more valuable. Here's what actually works.
The Three-Tier Standard: Your Foundation
The most common and effective structure uses three tiers with escalating discounts: "Buy 2 get 10% off, Buy 3 get 15% off, Buy 5+ get 25% off." This structure works because each tier creates a decision point where customers calculate whether the next level is worth it.
A protein powder company implemented exactly this structure at $45 per container. Someone buying two containers ($90, 10% off = $81) sees they could add one more and get 15% off instead ($135, 15% off = $114.75). Adding that third container costs them an extra $33.75 but they save an additional $6.75—it feels like getting a better deal by spending just a bit more.
Tier Structure Formula
Base your tiers on actual customer behavior. Analyze your order data to find:
- Tier 1: Set at your average order quantity (e.g., if most buy 2 items, make that Tier 1)
- Tier 2: Set 50% higher than Tier 1 (if Tier 1 is 2, make Tier 2 three items)
- Tier 3: Set 2-3x your Tier 1 quantity (if Tier 1 is 2, make Tier 3 five or six items)
The key insight: 34% of customers who hit Tier 1 will reach for Tier 2 if the incremental value is clear. Of those reaching Tier 2, about 18% will jump to Tier 3. These percentages compound into significant AOV increases when multiplied across your entire customer base.
Progressive Discount Percentages: Making Each Tier Compelling
Your discount percentages need to escalate meaningfully at each tier. If Tier 1 is 10% off and Tier 2 is 11% off, nobody will bother. The jump needs to feel substantial enough to motivate the extra purchase.
The ideal progression for most products: 10% → 15% → 25%. This creates clear value gaps between tiers. Someone at the 10% tier sees that doubling their purchase quantity gets them 150% more discount (from 10% to 25%). That math feels compelling.
A coffee roaster tested different progressions: 5-10-15%, 10-15-20%, and 10-15-25%. The 10-15-25% structure drove 28% more customers to the top tier than the 5-10-15% structure, despite the entry tier being twice as steep. Customers were willing to buy more for meaningfully better deals.
Dollar-Based vs. Percentage-Based: Which Converts Better?
Should your tier messaging emphasize percentages ("Save 25%") or dollar amounts ("Save $18")? The answer depends on your price points, but data shows clear patterns.
For products under $50, percentage discounts perform 15-20% better. "Save 20%" feels more significant than "Save $8" when the product costs $40. But for products over $100, dollar amounts win decisively. "Save $75" hits harder than "Save 25%" on a $300 item.
A furniture store tested this on a $400 chair. "Buy 2 chairs, save 20%" converted at 12%. "Buy 2 chairs, save $160" converted at 19%—a 58% improvement in conversion. The dollar amount made the savings tangible and immediate, while the percentage required mental math.
Best practice: show both. "Buy 3 for $120 (save $30, 20% off)" gives customers both data points. Some respond to percentages, others to dollars. Why choose when you can provide both?
BOGO Strategies: When "Free" Beats Discounts
Buy One Get One (BOGO) offers are technically volume discounts, but they work through a different psychological mechanism. The word "free" triggers emotional responses that percentage discounts simply can't match, even when the math is identical.
The Psychological Power of "Free"
"Buy 2 Get 1 Free" is mathematically identical to "33% off when you buy 3." But they don't feel the same at all. The promise of getting something for free creates excitement and urgency that percentage discounts lack.
An apparel brand tested this directly: They ran "30% off when you buy 3 shirts" for two weeks, then switched to "Buy 2 Shirts, Get 1 Free" for two weeks. Same discount, different framing. The BOGO offer increased conversion by 43% and average items per order from 2.1 to 3.3.
The reason? "Free" feels like winning a game or beating the system. Customers tell themselves "I'm getting a shirt for nothing!" even though they're paying for two. The emotional high of "free" overrides the rational calculation that it's just a discount.
BOGO Variations for Different Margins
Not all products can support full BOGO (Buy 2 Get 1 Free) economics. If your margins are tight, consider these variations that maintain the psychological appeal of "free" while protecting profitability.
Buy 2 Get 1 at 50% Off: This structure works for products with 40-50% margins. You're offering 17% off three items total (versus 33% for full BOGO), but the "50% off" messaging still feels generous. A skincare brand used this structure and saw 81% of the conversion lift they got from full BOGO while maintaining much healthier margins.
Buy 3 Get 1 Free: For higher-margin products, this increases the volume threshold. You're offering 25% off four items. A supplement company found this structure drove larger baskets than "Buy 2 Get 1 Free" because customers who hit the three-item threshold were already higher-intent buyers likely to add a fourth.
Buy X Get Y Free (where Y is lower value): "Buy a $40 yoga mat, get a $15 resistance band free" works brilliantly for cross-selling. You're introducing customers to complementary products while the "free" framing makes them feel like winners. A fitness equipment store used this to increase attachment rates for accessories from 12% to 34%.
Spend Threshold Discounts: Driving Cross-Product Purchases
While quantity-based tiers work for buying multiples of the same product, spend thresholds encourage customers to mix products across your catalog. This strategy increases both AOV and product discovery.
Setting Optimal Threshold Levels
Your first threshold should sit 20-30% above your current average order value. If your AOV is $60, set your first threshold at $75-80. This makes the goal feel achievable—customers with $60 carts will add $15-20 more to unlock the discount.
A beauty products store with a $68 AOV implemented spend thresholds at $85 (10% off) and $150 (20% off). The $85 threshold was hit by 42% of customers who had carts in the $60-84 range. They added an average of $23 in products to reach it—significantly more than the $17 minimum needed. Once customers commit to reaching a threshold, they often overshoot it.
The second threshold should be roughly 2x your first threshold. This captures high-intent customers and big-ticket orders. That same beauty store found 11% of customers reaching the $150 threshold, with an average final cart of $168. These customers were adding items strategically to maximize their 20% savings.
Threshold Calculation Example
For a store with $70 AOV:
- First threshold: $90 (AOV × 1.3) = 10% off
- Second threshold: $175 (First × 2) = 20% off
This structure converts 35-45% of customers to the first threshold and 8-12% to the second, increasing overall AOV by 25-35%.
Combining Spend Thresholds with Free Shipping
The most powerful spend threshold strategy combines percentage discounts with free shipping. "Spend $75 get 10% off + free shipping" gives customers two compelling reasons to increase their cart value.
Research shows 93% of consumers are more likely to purchase when free shipping is offered. When you combine that with a percentage discount, you create a compound motivation that's incredibly effective at driving larger orders.
A pet supplies store tested three approaches: (A) Free shipping at $50, (B) 10% off orders over $50, and (C) Free shipping + 10% off orders over $50. The combined offer (C) increased AOV to $68 versus $54 for free shipping alone and $57 for discount alone. The combination outperformed either incentive individually by 26%.
Implementation tip: Display threshold progress in the cart. "You're $12 away from 10% off + free shipping!" with a visual progress bar. This real-time feedback creates urgency and makes the goal tangible. Stores using progress bars see 22-28% higher threshold achievement rates than those with static messaging.
Mix-and-Match Discounts: Solving the Variety Problem
The biggest objection to volume discounts is "I don't need five of the same thing." Mix-and-match discounts solve this by letting customers hit volume thresholds across product variants or categories.
Building Flexible Bundles
"Pick any 3 t-shirts for $60" or "Build your own 6-pack coffee sampler for $65" combines the psychology of personalization with the economics of volume pricing. Customers feel like they're creating a custom bundle while you're achieving the same AOV increase as fixed bundles.
A craft beer shop implemented "Build Your Own 6-Pack" for $18 (individual beers were $3.50, so full price would be $21). Customers could choose any six beers. This increased beer sales by 156% compared to selling singles because it removed the "I don't want six of the same beer" barrier. Average customers selected 4.2 different beers, discovering new products while spending more.
The key to mix-and-match success is clear communication. Show exactly how the pricing works: "Pick 3: $60 (save $15). Pick 5: $90 (save $35)." Make selection easy with checkboxes or a builder interface that shows progress: "You've selected 2 of 3 items. Add 1 more to unlock your discount."
Category-Wide Mix-and-Match
Instead of limiting mix-and-match to variants of one product, apply it across entire categories. "Buy any 3 items from our skincare collection, get 20% off" encourages category exploration while driving volume.
A wellness brand used this approach across their supplement category: "Choose any 3 supplements, get 25% off." This increased cross-product purchasing dramatically. Previously, 73% of orders contained only one supplement. After implementing category-wide mix-and-match, 41% of orders contained 3+ different supplements. Customers were discovering product combinations they wouldn't have tried without the volume incentive.
Setting Profitable Discount Rates Without Destroying Margins
The most common volume discount mistake is setting rates based on gut feel rather than actual margin math. A discount that seems reasonable can quickly destroy profitability when you run the numbers.
The Margin-First Approach to Discount Rates
Start with your actual costs and margins, not arbitrary discount percentages. If a product costs you $15 and sells for $30, you have $15 margin (50% gross margin). A 20% volume discount drops your selling price to $24, leaving $9 margin (37.5% gross margin).
That might be sustainable if the volume increase justifies it. But if that same product has $20 COGS (cost of goods sold) and sells for $30, you only have $10 margin (33% gross margin). A 20% discount drops the price to $24, leaving just $4 margin (16.7% gross margin)—likely unprofitable once you factor in other costs.
The formula to memorize: **Profit per order = (Selling Price - COGS) × Quantity**. Compare profit across different volume scenarios. If selling 1 unit generates $10 profit and selling 3 units at 20% off generates $12 total profit, the volume discount works. If it generates $8 total profit, it doesn't.
Quick Profit Check
Before setting volume discounts, run this calculation:
Baseline: 1 unit × (Price - COGS) = $X profit
Volume Tier: 3 units × ((Price × 0.85) - COGS) = $Y profit
If Y > X, the volume discount is profitable. If Y ≤ X, adjust your discount rate or tier quantity.
Testing Your Way to Optimal Rates
Don't guess at discount rates—test them. Start conservative (5-10% for lower tiers, 15-20% for top tiers) and increase based on performance data. It's far easier to make discounts more generous than to reduce them once customers expect heavy discounts.
A subscription box company tested three structures over consecutive months: (A) 10-15-20%, (B) 15-20-25%, and (C) 20-25-30%. Structure B (15-20-25%) drove the best balance of conversion and profitability. Structure C moved more volume but profit per order actually decreased. Structure A was too conservative—customers didn't see enough value to change buying behavior.
Monitor these metrics weekly during testing: volume discount attachment rate (what % of orders use volume pricing), average items per discounted order, AOV for discounted vs. non-discounted orders, and most importantly, profit per order. If profit per order is declining despite AOV increases, your discounts are too aggressive.
Implementation: Making Volume Discounts Visible and Easy
Even the best-designed volume discount won't work if customers don't see it or can't understand it quickly. Visibility and clarity determine success as much as discount structure.
Product Page Display Best Practices
Volume discount pricing should be impossible to miss on product pages. Don't bury it in description text or hide it below the fold. Place it prominently near or above the "Add to Cart" button.
The most effective display is a visual tier table showing all options side-by-side. Something like:
Buy 1: $20 each
Buy 3: $18 each (Save $6 total, 10% off)
Buy 5: $16 each (Save $20 total, 20% off)
This format makes comparison effortless. Customers immediately see the value progression and can make informed decisions. Show both per-unit pricing and total savings—different customers respond to different metrics.
A supplement brand A/B tested this table format against simple text ("Volume discounts available"). The table increased volume discount adoption from 18% to 31% of orders—a 72% increase in participation just from better visibility.
Cart Messaging That Motivates Action
Your cart is the last opportunity to convince customers to add items for volume discounts. Use dynamic messaging that updates based on cart contents: "Add 1 more item to unlock 15% off your entire order (save $12)."
Specificity matters enormously. Compare "Add more items for a discount" versus "Add 1 more item to save $12." The specific version tells customers exactly what action to take and what they'll gain. It removes all ambiguity.
A home decor store implemented smart cart messaging showing both items needed and savings amount. For someone with 2 items worth $85 total, the message read: "Add 1 more item to unlock 15% off (save $12.75)." They even suggested specific products at the right price point to help customers hit the threshold. This increased threshold achievement from 23% to 41% of eligible carts.
Technical Implementation on Shopify
Shopify offers native volume pricing in product admin (Settings → Products → Quantity pricing), but it's limited. You can set quantity breaks and prices, which creates automatic discounts without apps. The downside: it only displays on product pages, not dynamically in cart.
For most stores, a volume discount app provides better functionality. Apps like Uppa Bundles, Bold Discounts, or Wholesale Pricing Discount offer:
- Dynamic cart messaging showing progress toward next tier
- Mix-and-match across collections or product groups
- Customer-specific volume rates for wholesale or VIP customers
- A/B testing different tier structures
- Analytics showing which tiers drive most revenue
If volume discounts are core to your strategy (driving 20%+ of revenue), invest in a quality app. The better UI/UX typically pays for itself within the first month through increased participation rates.
Volume Discounts by Product Category
Consumables: The Volume Discount Sweet Spot
Products customers use regularly and reorder—coffee, supplements, snacks, beauty products, cleaning supplies—are ideal for volume discounts. The pitch is simple: "You're going to buy this again anyway. Buy 3 months' supply now at 20% off instead of reordering at full price later."
A coffee subscription service offered volume discounts on one-time purchases: "Buy 3 bags now for $48 (save $6) or subscribe for $15/bag monthly." 37% chose the 3-bag option despite the subscription being cheaper long-term. Why? Immediate savings felt more tangible than future subscription value. The volume discount converted fence-sitters who weren't ready to commit to subscriptions.
Apparel and Fashion: Mix-and-Match Wins
Fashion customers want variety, not five identical shirts. Mix-and-match volume discounts perform best: "Buy 3 items, get 20% off" across sizes, colors, and styles.
An athleisure brand implemented "Buy 3 Get 20% Off" across their entire clothing line. Average order value increased from $68 (1.7 items) to $98 (3.2 items). The 20% discount reduced margin percentage but increased absolute profit per order from $34 to $47—a 38% profit increase per customer.
Gifts and Specialty Items: Even-Number Tiers
For gift-oriented products, use even-number tiers that make sense for gift distribution: 4, 6, 8, 10. "Buy 6 candles for $75 (save $15)" works beautifully for someone buying holiday gifts.
A candle company leaned into this during Q4, promoting "Stock up on gifts and save: 6 candles for $75, 12 candles for $135." Their November-December AOV hit $98 versus $34 year-round average. The volume tiers aligned perfectly with gift-buying behavior.
Measuring and Optimizing Volume Discount Performance
Key Metrics to Track Weekly
Volume discount attachment rate: What percentage of total orders include a volume discount? Aim for 25-40%. If you're below 20%, your discounts aren't visible enough or thresholds are too high. Above 60% might indicate overly generous discounts.
Average items per discounted order: Track how many items customers buy when using volume discounts versus baseline orders. You want to see meaningful differences—if volume discount orders only average 2.3 items versus 2.1 baseline, your tiers aren't working.
Tier distribution: Which tiers get used most? If 80% of volume orders hit the lowest tier and almost nobody reaches higher tiers, your upper tiers are priced wrong or positioned poorly. Conversely, if everyone maxes out the top tier, you're leaving money on the table—add a premium tier.
Profit per order (not just revenue): This is the ultimate test. Are volume discount orders more profitable than non-discounted orders? Factor in all costs—COGS, shipping, fulfillment, payment processing. If volume orders generate less profit despite higher revenue, your discount rates are too aggressive.
Optimization Through Testing
A/B test ruthlessly. Test tier thresholds (2-3-5 vs. 3-5-10), discount percentages (10-15-20% vs. 15-20-25%), messaging (percentages vs. dollar amounts), and display formats (tables vs. text). Even small changes can drive 10-15% improvements in performance.
A health supplements brand tested six different volume structures over six months. Their winning combination (15-20-30% at 2-4-6 quantity thresholds) increased AOV by 44% and profit per order by 31% compared to their original structure (10-15-20% at 3-5-10 thresholds). The testing investment paid for itself many times over.
Common Volume Discount Mistakes and How to Avoid Them
Setting tiers too aggressively without margin math. "Buy 2 get 50% off" sounds great until you realize you're losing money on every sale. Always calculate actual profit per order at each tier before implementing.
Hiding volume discounts in product descriptions. If customers don't see the offer, it doesn't exist. Volume pricing should be prominent, visual, and impossible to miss. Stores that move volume pricing from description text to prominent tier tables see 40-60% increases in adoption.
Not promoting volume discounts beyond product pages. Feature volume discounts in email campaigns, on your homepage, in social media. "Stock up and save with volume pricing" campaigns drive awareness and trial. Don't assume customers will discover volume pricing organically.
Forgetting about shipping costs. If your 5-unit volume discount doubles shipping weight and costs, factor that into pricing. A volume discount that eliminates profit because of fulfillment costs defeats the purpose. Calculate total fulfillment costs per order at each tier.
Never testing or optimizing. Set-and-forget volume pricing leaves money on the table. Review performance monthly, test variations quarterly, adjust based on customer behavior. The best volume discount structures evolve over time based on data.
Getting Started: Your 30-Day Volume Discount Implementation Plan
Week 1: Analyze and Plan. Review your current order data. What's your average order quantity? What's your AOV? Calculate margins on your top products. Determine which products are candidates for volume pricing (consumables, high-margin items, multi-purchase categories).
Week 2: Design Your Structure. Create 2-3 tier structures based on your analysis. Set quantity thresholds 30-50% above current average order quantity. Calculate discount percentages that maintain healthy margins while providing genuine value. Design how you'll display volume pricing on product pages.
Week 3: Implement and Launch. Set up volume pricing in Shopify (native or via app). Create product page displays showing tier structures clearly. Add cart messaging for customers close to discount thresholds. Test the entire flow from product page to checkout to ensure everything works correctly.
Week 4: Promote and Monitor. Launch an email campaign announcing volume pricing to your list. Add homepage messaging about volume savings. Monitor key metrics daily: attachment rate, AOV, profit per order. Gather early data to inform optimizations.
Conclusion: Volume Discounts as a Competitive Advantage
Volume discounts aren't just a pricing tactic—they're a strategic advantage. When implemented thoughtfully, they increase average order values by 25-40%, improve customer lifetime value by encouraging stockpiling, and create switching costs that reduce price shopping.
The stores that master volume pricing don't compete primarily on price—they compete on value. Customers feel smart buying from them because they're "getting a deal" by buying more. This shifts the conversation from "Is this product worth $30?" to "Should I buy 3 and save 20% or 5 and save 30%?"
Start with one product category this week. Implement a basic three-tier structure. Measure results for 30 days. Then expand to additional categories and optimize based on data. Six months from now, when volume discounts are driving 35% of your revenue at healthy margins, you'll wonder why you didn't start sooner.
Frequently Asked Questions
What is the best volume discount percentage for Shopify stores?
The ideal volume discount is 15-25% for most Shopify stores. Discounts under 10% don't motivate buyers enough to change their behavior, while discounts over 30% can appear suspicious and significantly hurt profit margins. The sweet spot is 10% for your first tier, 15-20% for your second tier, and 25% for your highest tier. Always calculate margins first—what works depends on your cost of goods sold and target profit margins.
How do I add volume discounts to my Shopify store?
You can add volume discounts three ways: (1) Use Shopify's native quantity pricing feature in Settings > Products, (2) Install a volume discount app like Uppa Bundles, Bold Discounts, or Wholesale Pricing Discount, or (3) Use Shopify Scripts if you're on Shopify Plus. Apps provide better customization, cart messaging, and analytics compared to native features, making them the recommended choice for most stores.
Do volume discounts actually increase average order value?
Yes, when implemented properly, volume discounts increase AOV by 25-40% on average. They work because they incentivize customers to buy more to unlock savings, rather than just offering a flat discount. The key is setting tiers at achievable thresholds (20-30% above your current average order quantity) and making the discount progression compelling enough to motivate the extra purchase.
What's the difference between volume discounts and product bundles?
Volume discounts reward customers for buying multiple quantities of the same product or product category (e.g., "Buy 3 t-shirts, get 20% off"). Product bundles group different complementary products together at a package price (e.g., "Camera + Lens + Bag for $499"). Volume discounts work best for consumables and repeat-purchase items, while bundles excel at cross-selling complementary products.
Are Buy One Get One (BOGO) offers better than percentage discounts?
BOGO offers typically convert better than equivalent percentage discounts due to the psychological power of the word "free." A "Buy 2 Get 1 Free" offer (33% off) usually outperforms "33% off when you buy 3" by 20-40% in conversion rates. However, BOGO requires higher margins to maintain profitability. Test both approaches to see which works better for your specific products and margins.
Will volume discounts hurt my profit margins?
Not if you calculate them correctly. While volume discounts reduce your margin percentage, they can increase absolute profit per order by driving higher order quantities. Before implementing, calculate: Profit per order = (Selling Price - COGS) × Quantity for each tier. If selling 1 unit generates $15 profit and selling 3 units at 20% off generates $27 total profit, the volume discount is profitable. Always prioritize profit per order over margin percentage.
How many discount tiers should I offer?
Three tiers is the sweet spot for most stores. Having 2-3 decision points (Tier 1, Tier 2, Tier 3) creates optimal psychological progression without overwhelming customers. Fewer than three tiers limits your ability to capture different customer segments, while more than four tiers creates decision paralysis. A typical structure: Buy 2 (10% off), Buy 3 (15% off), Buy 5+ (25% off).
Should I show percentage discounts or dollar amounts?
For products under $50, percentage discounts perform 15-20% better ("Save 20%" vs "Save $8"). For products over $100, dollar amounts convert better ("Save $75" vs "Save 25%"). The best approach is showing both: "Buy 3 for $120 (save $30, 20% off)" gives customers both data points and lets them respond to whichever metric resonates more.