Discount Calculator
Enter a price and a percent off to see the sale price and exactly what you save, updated live as you type. The second calculator runs the math backwards and recovers the original price when all you know is the discounted one.
Discount Calculator tool
Price after a discount
Original price before the discount
How to use it
- Type the original price and the percent off.
- Read the sale price and your savings.
- Use the second box when you know the sale price and want the original.
Worked example
Percent off, stacked discounts and reverse math
Taking a percentage off is quickest as a single multiplication. A 25 percent discount leaves 75 percent of the price, so $80 becomes 80 times 0.75, which is $60. Working with what remains avoids the two-step subtraction most people fumble in a store.
Stacked discounts do not add up. Twenty percent off followed by another 20 percent at the register is not 40 percent off. The second cut applies to the already reduced price, so $100 goes to $80 and then to $64, which is 36 percent off in total. The extra-percent field above shows the true combined figure.
Reverse percentages catch people out just as often. If a jacket rings up at $60 after 25 percent off, the original was 60 divided by 0.75, which is $80. Adding 25 percent back to $60 would wrongly give $75.
Common uses
- Checking a sale price before you buy
- Comparing two competing offers
- Working out stacked or coupon discounts
- Recovering the original price from a sale tag