Discount Calculator
Sale-season math without the squinting. Type the price and the percent off — the penguin tells you the sale price and exactly how many dollars you keep.
How to use
- Enter the original price. Type the sticker price, before any discount — 120.00, not $120.
- Enter the discount percentage. 25 for 25% off, straight from the tag or the ad.
- Read the sale price instantly. It updates as you type — no button to press.
- Check the savings line. See the dollars you keep and the percent of the original price you're still paying.
Frequently asked questions
How do I calculate a 20% discount on a price?
Multiply the price by 0.20 to get the savings, then subtract it from the price. A $80 item at 20% off costs $64, and you save $16. The general math is always price × (1 − discount ÷ 100) — or just type both numbers into the calculator above.
What is the formula for percent off?
Sale price = original price × (1 − discount ÷ 100). So a $120 jacket at 30% off is 120 × 0.70 = $84, and the amount saved is original price × discount ÷ 100, which is $36 here. The calculator runs both lines for you automatically.
How do I figure out the discount percentage from two prices?
Divide the sale price by the original price, subtract the result from 1, and multiply by 100. If a $90 item rings up at $63, that's (1 − 63 ÷ 90) × 100 = 30% off. Handy for checking whether a so-called sale is actually a sale.
Does this discount calculator work for multiple items?
It handles one price at a time, so add your items' prices together first and enter the total. If different items carry different discounts, run each one separately and add the sale prices together.
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