Calculate the sale price after one or two stacked discounts. See exactly how much you save and the true total percentage off.
For stacked discounts like 20% off + extra 10%
Final Price
$75.00
You Save
$25.00
Total Savings
25.0%
$100.00
$75.00
You save $25.00
4
Coffees
$5.5 each
1
Movie Tickets
$15 each
7
Gallons of Gas
$3.5 each
1
Streaming Months
$15.99 each
A discount reduces the original price of an item by a certain percentage. Retailers often stack multiple discounts during sales events — for example, 30% off plus an extra 15% at checkout. Because stacked discounts are applied sequentially, the total savings is always slightly less than simply adding the two percentages together. This calculator handles both single and double discounts so you know the exact final price.
Multiply the original price by the discount percentage divided by 100, then subtract from the original price. For example, 25% off $80: $80 × 0.25 = $20 discount, so the sale price is $60.
Stacked discounts are applied sequentially, not added together. A 20% discount followed by an extra 10% off does not equal 30% off. Instead, you pay 80% of the original, then 90% of that. On a $100 item: $100 × 0.80 = $80, then $80 × 0.90 = $72 — a total savings of 28%, not 30%.
It depends on the price. On expensive items, a percentage discount is usually better. On cheap items, a fixed dollar amount may save more. Compare both: if 20% off a $30 item is $6, but you have a $10 coupon, the coupon wins.
Percentage Calculator
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Calculate sales tax on any purchase. Enter the price and tax rate to see the tax amount and total cost, or reverse-calculate the pre-tax price from a total.