Amazon Discount Calculator
Coupons cost $0.60 per redemption, Lightning Deals cost a flat fee that must be spread across units, and every discount still pays referral percent on the lower price while FBA fees stay fixed per unit. This calculator compares regular price versus discounted price to show profit erosion per unit, total impact, and how many extra regular-price units you need to sell to recover the promo cost.
Instant calculations · Editable fee assumptions · Export-ready results
Inputs
Values update results instantly. Adjust fee assumptions to match your seller dashboard.
Pricing
Non-sale Amazon listing price.
Discount
How discount is offered.
Percent for % off, dollars for $ off and deal types.
Amazon charges $0.60 per coupon redemption.
Flat fee for Lightning Deals, often $150 or more.
Units you expect at sale price.
Costs
Sourcing cost.
Fulfillment
FBA or FBM fulfillment per unit.
Amazon fees
Category referral percent.
Advertising
Ad spend per order.
Results
Live estimates based on your inputs and editable fee assumptions.
Discounted price
$23.99
Price after discount.
Regular profit per unit
$11.99
Profit at regular price.
Discounted profit per unit
$6.89
Profit at discounted price after fees.
Margin at regular price
40.0%
Net margin at full price.
Margin at discounted price
28.7%
Net margin at discounted price.
Profit change per unit
-$5.10
Difference per unit.
Total profit impact
-$509.83
Per-unit change times expected units.
Extra regular units to recover
43
Additional full-price units needed to offset discount cost.
Revenue at regular price
$2,999.00
Regular price times expected units.
Revenue at discounted price
$2,399.20
Discounted price times expected units.
What this means
Healthy discounted margin 28.7% (regular 40.0%). Regular profit $11.99, discounted $6.89, change $-5.10 per unit. Total impact $-509.83 for 100 units. Break-even needs 43 regular units.
Regular vs discounted price breakdown
Interactive breakdown of fees, costs, and remaining profit.
Distribution
- Regular price$29.9938.5%
- Discounted price$23.9930.8%
- Product+fulfillment+ppc$13.5017.3%
- Referral at discounted$3.604.6%
- Discounted profit per unit$6.898.8%
Total $77.97 · 5 segments · interactive
Line-item breakdown
Dollar amounts, share of revenue, and visual proportion.
- Regular price
- $29.99
- Discounted price
- $23.99
- Referral regular
- $4.50
- Referral discounted
- $3.60
- Promo fee per unit
- $0.00
- Regular profit per unit
- $11.99
- Discounted profit per unit
- $6.89
- Margin regular
- 40.0%
- Margin discounted
- 28.7%
- Profit change per unit
- -$5.10
- Total impact
- -$509.83
- Break-even extra regular units
- 43
Assumptions used
- • Discounted price $23.99 from percent_off value 20
- • Promo fee $0.00 per unit (percent_off)
- • Referral regular $4.50, discounted $3.60 at 15.0%
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Amazon Discount Calculator
Generated 8/4/2026, 2:54:24 PM · Currency USD
Inputs
- Regular price per unit: 29.99
- Discount type: percent_off
- Discount value (% or $): 20
- Product cost per unit: 8
- Fulfillment cost per unit: 4.5
- Referral fee %: 15
- PPC cost per order: 1
- Coupon redemption fee per unit: 0.6
- Lightning Deal flat fee: 150
- Expected discounted units: 100
Results
- Regular price: $29.99
- Discounted price: $23.99
- Referral regular: $4.50
- Referral discounted: $3.60
- Promo fee per unit: $0.00
- Regular profit per unit: $11.99
- Discounted profit per unit: $6.89
- Margin regular: 40.0%
- Margin discounted: 28.7%
- Profit change per unit: -$5.10
- Total impact: -$509.83
- Break-even extra regular units: 43
Interpretation
Healthy discounted margin 28.7% (regular 40.0%). Regular profit $11.99, discounted $6.89, change $-5.10 per unit. Total impact $-509.83 for 100 units. Break-even needs 43 regular units.
How it works
Methodology & formulas
This calculator is transparent by design. Review the steps and formulas so you can trust the estimate and adjust assumptions when your dashboard differs.
Calculation steps
- 1SalePrice discounted derived from discountType and discountValue.
- 2ReferralRegular = regularPrice × referral%.
- 3ReferralDiscounted = discountedPrice × referral%.
- 4PromoFeePerUnit = 0 unless coupon adds couponRedemptionFee or lightning_deal adds lightningDealFee/expectedUnits.
- 5ProfitRegular = regularPrice − product − fulfillment − referralRegular − ppc.
- 6ProfitDiscounted = discountedPrice − product − fulfillment − referralDiscounted − ppc − promoFee.
- 7Margin = profit / price ×100.
- 8TotalImpact = (profitDiscounted − profitRegular) × expectedUnits.
- 9BreakEvenExtra = |totalImpact| / profitRegular when profitRegular >0.
Formulas
- DiscountedPrice = regular × (1 - %) or regular - $ for dollar types
- ProfitRegular = regular − product − fulfillment − regular×referral% − PPC
- PromoFee = 0, or $0.60 for coupon, or flatFee/units for lightning
- ProfitDiscounted = discounted − product − fulfillment − discounted×referral% − PPC − promoFee
- TotalImpact = (profitDiscounted − profitRegular) × expectedUnits
- BreakEvenExtraUnits = |totalImpact| ÷ profitRegular
Important assumptions
- Discounted price = regular minus discount value. For percent_off or coupon percent, discounted = regular × (1 - discount%). For dollar_off or lightning_deal dollar amount, discounted = regular - discountValue.
- Price floored at $0.01 minimum.
- Referral fee applies to discounted price at referralFeePercent.
- Coupon redemption fee $0.60 applies per unit only when discountType is coupon, else 0.
- Lightning Deal flat fee divided by expectedUnits adds to per-unit promo cost only for lightning_deal type.
- Total per-unit costs include productCost + fulfillmentCost + ppcPerOrder + referral at that price + promo fee if any.
- Break-even extra units = total profit impact loss divided by regular profit per unit when regular profit positive.
Worked example
20% off $29.99 coupon scenario
$29.99 regular, 20% coupon, product $8, fulfillment $4.50, referral 15%, PPC $1, coupon fee $0.60, 100 units expected.
FAQ
Common questions
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