Stacked Discount Calculator
Work out the real combined effect of several discounts applied one after another — it isn't the sum of the rates.
Money & FinanceResult
Final price
$810
- Total saved
- $190
- Real combined discount
- 19%
- If you'd just added the rates
- 20%
How is it calculated?
Enter the original price, then add the discounts in order (use “Add a discount” for as many as you need). Each discount applies to whatever's left after the ones before it — which is why “20% + 10%” brings the final price down by 28%, not 30%.
Formula
Final price = Price × (1 − discount₁÷100) × (1 − discount₂÷100) × …
Example
Original price: $1,000 · Discounts (applied in order): 2 rows → Final price: $720
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Frequently asked questions
Does 20% off plus an extra 10% off mean 30% off in total?
No. The second discount applies to what's left after the first one, so the combined effect is less than 30% (28% in that example).
Does the order of the discounts change the result?
No. Multiplication order doesn't matter; 20% then 10% gives the same final price as 10% then 20%.
How many discounts can I add?
Up to 10.