See your real savings when multiple discounts stack
Price & Currency
Discounts (applied in order)
Result
Adding the discounts gives 45.00%, but the real saving is only 38.80%. Each discount applies to the already-reduced price, so stacked discounts are always less than their simple sum.
Step-by-Step Breakdown
| # | Discount | Rate | Saved (step) | Price After | Effective Off |
|---|---|---|---|---|---|
| 1 | Store Sale | −20.00% | $40.00 | $160.00 | 20.00% |
| 2 | Member Coupon | −15.00% | $24.00 | $136.00 | 32.00% |
| 3 | Promo Code | −10.00% | $13.60 | $122.40 | 38.80% |
| Total | $77.60 | $122.40 | 38.80% | ||
Stacked vs. Simple Sum
Stacking discounts is always 6.20% less than their simple sum. Each subsequent discount applies to the reduced price, not the original.
How Stacked Discounts Work
When a retailer applies multiple discounts in sequence, each discount is taken off the current price — not the original price. This means a 20% sale followed by a 30% coupon is not 50% off. The real saving is 44% (since 0.80 × 0.70 = 0.56, so 56% remains).
Note: This tool calculates the mathematical result of sequentially applying percentage discounts. Actual promotional terms, tax, and eligibility rules may vary by retailer. Always verify savings at checkout.
When a store stacks a 20% sale with a 30% coupon, the real saving is 44% — not 50%. The stacked discount calculator shows you the true final price when multiple percentage discounts are applied in sequence. Enter your original price, add as many discount tiers as you need, and instantly see the effective combined rate alongside a step-by-step breakdown of how each discount compounds.
Each discount applies to the already-reduced price, not the original. So a 20% discount followed by a 30% discount leaves 80% × 70% = 56% of the original price — a 44% total saving, not 50%. The calculator shows this difference clearly.
No. Because multiplication is commutative, the final price is identical regardless of which discount is applied first. However, the amount saved at each individual step will differ, which is why the step-by-step breakdown can look different even though the total is the same.
Multiply the 'keep' factors together: for d1% and d2%, the equivalent single discount is 1 − (1 − d1/100) × (1 − d2/100). The calculator computes this automatically and labels it the 'Effective Discount'.
Yes — the tool supports up to 10 sequential discounts. Add as many rows as you need, name each one (e.g. Store Sale, Member Coupon, Promo Code), and it will calculate the cumulative effect at every step.