Discount Calculator
See the sale price and how much you save, including stacked discounts and sales tax.
Your answer
Turn on JavaScript to use this calculator. The formula is explained below so you can work it out by hand.
How this calculator works
Sale price = original price × (1 − discount ÷ 100)
Stacked discounts apply one after the other, so they multiply. 30% off and then an extra 20% off leaves you paying 0.70 × 0.80 = 56% of the original price, a total discount of 44%, not 50%. Sales tax is added to the discounted price.
Example
A jacket is $80 and 30% off: $80 × 0.70 = $56, saving $24. With an extra 20% off at checkout: $56 × 0.80 = $44.80.
Category: Money & Pay, Small Business, Everyday Math