Math
Discount Stacking Calculator
Stacking percent discounts is multiplicative, not additive. 20% + 20% is not 40%.
Final price
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- Sum of %
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- Actual %
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- Savings
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FAQ
Why stacked discounts are less than the sum? +
Each percent applies to the already-reduced price, not the original.
Does the order matter? +
No — multiplication is commutative. 20% off then 10% off = 10% off then 20% off.