Stacked Discount Calculator
Original Price ($)
Discounts Applied (sequentially)
A stacked discount calculator applies multiple percentage discounts sequentially. Each discount reduces the already-reduced price — not the original — so stacking yields a smaller saving than adding the percentages together.
- 1After Discount 1: Price₁ = Original × (1 − D1%)
- 2After Discount 2: Price₂ = Price₁ × (1 − D2%)
- 3Each step compounds on the previous reduced price
- 4A 20% then 10% discount equals 28% off total — NOT 30%
$100, 20% off then 10% off=$72.00 — 28% total discount, not 30%
$200, 15% off then 5% off then 3% off=$148.86 — saved $51.14 total
$50, 50% off then 50% off=$12.50 — 75% total, not 100%
| Discount 1 | Discount 2 | Naive Sum | Actual Stacked |
|---|---|---|---|
| 10% | 10% | 20% | 19% |
| 20% | 10% | 30% | 28% |
| 25% | 25% | 50% | 43.75% |
| 50% | 20% | 70% | 60% |
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