Discount Calculator

Multiply the original price by the discount percentage and divide by 100 to get the savings, then subtract the savings from the price. For example, 20% off 80 saves 16, so the final price is 64.

No. The second discount applies to the already reduced price. On 100, 20% off gives 80, and 10% off 80 gives 72, a combined discount of 28%. The combined rate is 1 − (1 − 0.20) × (1 − 0.10) = 0.28, and the order of the two discounts makes no difference.

Every full group of X + Y items earns Y discounted items. With buy 2 get 1 free at 10 each, 3 items cost 20 and 6 items cost 40. In a partial group, items beyond the first X are discounted too. You can set the discount on the Y items, for example 50% for 'buy one get one half price'.

Divide the sale price by (1 − discount ÷ 100). If an item costs 72 after a 20% discount, the original price was 72 ÷ 0.8 = 90. Use the Original price mode to do this automatically.

This calculator applies tax to the discounted price, which is how store discounts are usually treated. Tax rules vary by country and state, and some coupons (such as manufacturer coupons in some US states) are taxed on the pre-discount price, so check your local rules.