10% Off Calculator
10% off is a small but common discount tier — frequent-buyer rewards, email signup credits, first-order coupons. On a $100 purchase, 10% off saves you $10.00, bringing the total to $90.00.
10% off common prices
| Original price | 10% off | Sale price |
|---|---|---|
| $10 | -$1.00 | $9.00 |
| $25 | -$2.50 | $22.50 |
| $50 | -$5.00 | $45.00 |
| $100 | -$10.00 | $90.00 |
| $200 | -$20.00 | $180.00 |
| $500 | -$50.00 | $450.00 |
| $1,000 | -$100.00 | $900.00 |
How to calculate 10% off
To calculate 10% off any price, multiply the original price by 0.10 to get the discount amount, then subtract that from the original price. The shortcut: multiply by 0.90 to jump directly to the sale price. For example, 10% off $80 is $72.00 — and you save $8.00.
10% off is the easiest discount to do in your head: just move the decimal point one place to the left to get the discount amount. $48.00 becomes $4.80 off, so the sale price is $43.20.
Watch out for stacked discounts. "10% off + extra 10% off" is not (10 + 10)% off — it's actually 19.0% off, because the second discount applies to the already-reduced price. This is also why "buy one, get one 10% off" is only a 5% discount on the pair, not 10% off each item.