Discount Calculator
Handles percentage off, double discounts, and working back to the original price.
Sale price
—
Share sends a link that reopens these numbers. Copy details pastes the full breakdown as a list.
Original price —
You save —
Total % off — %
Reading this —
The formula
sale = original × (1 − d₁) × (1 − d₂) original = sale ÷ (1 − d)
Discounts multiply, so they do not add. 20% off then 10% off is 28%, not 30%.
What to watch out for
Sales tax, if any, usually applies to the reduced price.
Frequently Asked Questions
Is 20% off then 10% off the same as 30% off?
No. It is 28% off, because the second discount applies to the reduced price.
How do I find the original price?
Divide the sale price by (1 − discount). 60 at 25% off was originally 80.