Quick Answer
How do you calculate a discount?
// Answer
Multiply the original price by the discount percent and divide by 100 to get the savings, then subtract from the price: sale = price − (price × percent ÷ 100). A $120 item at 25% off saves $30, so the sale price is $90.
Quick discount reference
| Original | 25% off | 50% off |
|---|---|---|
| $20 | $15 | $10 |
| $50 | $37.50 | $25 |
| $100 | $75 | $50 |
Why use this tool
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Quickly check whether a "50% off" sticker is really a deal, stack it against your budget, and see your exact savings — all privately on your device.
FAQ
Frequently asked questions
Multiply the price by the discount percent, divide by 100, then subtract from the original price.
Divide the savings by the original price and multiply by 100.
Apply the first discount, then apply the second to the new price. Discounts stack multiplicatively, not by adding the percentages.
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