Discount Calculator
Solve any discount from the two numbers you know — percent off, amount off, or final price — and stack a second coupon on top.
Processed locally in your browser — nothing is uploaded.
A stacked coupon applied to the already-discounted price.
Enter the original price and one discount value.
About Discount Calculator
Pick which value you know — the percent off, the dollar amount off, or the final shelf price — and the calculator solves for the rest. An optional second discount is applied the way stores actually apply it: to the already-reduced price, with the true effective percentage shown so "20% + 10%" doesn't get mistaken for 30%.
Common uses
- Check the register price of a 25%-off tag before checkout
- Reverse-engineer what percent off a sale price really is
- See the honest combined rate of stacked coupons
Example
Input
$100 · 20% off + extra 10% off
Output
Final price $72.00 · effective discount 28%