Discount Calculator

Work out the sale price, stack an extra coupon on top, and add sales tax to see what you'll pay at checkout.

Sale price
—

How stacked discounts work

An extra discount applies to the already-reduced price, so 30% off plus another 20% off is not 50% off. The price becomes 70% × 80% = 56% of the original, a 44% total discount.

Sale price = Price × (1 − D1) × (1 − D2)

Frequently asked questions

Is tax charged on the original price or the sale price?

In most cases, sales tax applies to the price you actually pay after store discounts. Manufacturer coupons can be treated differently in some states.

How do I find the percent off from two prices?

Subtract the sale price from the original, divide by the original, and multiply by 100. Use the percent change box on the percentage calculator.