Discount & Promo Margin Impact Calculator
See how a 10%–30% promo coupon slashes unit profit and how many extra orders you must sell just to break even on total profit.
Calculator Inputs
Updates automaticallyQuick Reference Table
| 50% Margin Item | Discount % | Extra Volume Needed |
|---|---|---|
| $80 / $40 cost | 10% off | +25% more units |
| $80 / $40 cost | 20% off | +67% more units |
| $80 / $40 cost | 30% off | +150% more units |
Frequently Asked Questions
Why does a 20% discount need 67% more sales?
Because costs don't shrink when you discount—every discounted dollar comes 100% out of your profit margin.
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