Discount calculator
Sale price after a percent-off discount, stacked coupons included.
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How it's calculated
Turn the percentage into a decimal first: 25% off means you pay 75% of the price, or 0.75. The sale price is the original price times that number, and the saving is the difference. A second discount, like an extra coupon at checkout, comes off the already reduced price, not the original. That is why 25% off plus an extra 20% off is 40% off in total, not 45%. The total discount shown is the real combined percentage. Results are rounded to the cent, the way a register rounds them.
Why is 25% off plus 20% off not 45% off?
The second discount is taken from the sale price, which is already smaller. $80 at 25% off is $60; 20% off $60 is $48, which is 40% off the original $80.
Is sales tax charged on the sale price or the original price?
On the sale price in nearly every state, after store discounts. Manufacturer coupons are treated differently in some states, so check your receipt.
How do I work out the discount percent from two prices?
Divide the saving by the original price and multiply by 100. Our percentage calculator does this in the "% change" mode.
How do I calculate 20% off a price?
Multiply the price by 0.8. For a $50 item, that is $40, so you save $10. For any discount, subtract the percentage from 100 and multiply by that as a decimal: 30% off is × 0.7, 15% off is × 0.85.
How do I figure a discount in my head?
Find 10% by moving the decimal point one place left, then build from there. For 30% off $80: 10% is $8, so 30% is $24, and the sale price is $56.
How do I find the original price from the sale price?
Divide the sale price by what is left after the discount. A $60 item that was 25% off: 60 ÷ 0.75 = $80 originally.
Is buy one, get one 50% off the same as 25% off?
Yes, when both items cost the same. You pay for one and a half items and get two, which works out to 25% off each. If the items have different prices, the half-off usually applies to the cheaper one, so the overall saving is smaller.
Results are estimates for informational purposes only and are not financial, medical or legal advice.