Discount Calculator
Find the sale price and how much you save from a percentage discount.
To find a sale price, multiply the original price by the discount percent and subtract it, or multiply the price by one minus the percent. A 25% discount on $80 saves $20, for a sale price of $60. Enter the price and the percent off to see both the amount you save and the final price.
These results are estimates for informational purposes only and are not financial, tax, or legal advice. Your actual figures from a lender or the IRS may differ. Consult a qualified professional before making decisions.
Sale price
$60.00
- Original price
- $80.00
- You save (25% off)
- $20.00
- Sale price
- $60.00
About the Discount Calculator
A discount lowers a price by a percentage, and this calculator shows both the amount you save and the price you actually pay. The quick way to the sale price is to multiply the original price by one minus the discount as a decimal, so 30% off becomes price times 0.70. Two things catch shoppers out. First, stacked discounts do not add. An extra 20% off an item already marked 30% off is not 50% off, because the second cut comes off the already-reduced price, which works out to 44% in total. Second, a percentage off is not the same as the equivalent dollars off, since the value of a percent depends on the price it is taken from. When you compare offers, convert each to its final price rather than trusting the headline percentage. Where sales tax applies, it is charged on the discounted price, so a discount lowers your tax as well.
Frequently asked questions
How do I calculate a discount?+
Multiply the price by the discount percent to get your savings, then subtract. Or multiply the price by (1 − percent/100) to get the sale price directly. 25% off $80 is $60.
How do stacked discounts work?+
They apply one after another, not added together. 30% off then 20% off is 0.70 × 0.80 = 0.56 of the original price, a 44% total discount, not 50%.
Is sales tax applied before or after a discount?+
After. Sales tax is charged on the discounted price you actually pay, so a coupon or markdown also reduces the tax.
What's the difference between percent off and dollars off?+
A percentage off scales with the price, while a fixed dollar amount does not. On a cheap item a flat $10 off can beat 20% off; on an expensive item the percentage usually wins.