What is 10% off $100?
Price after 10% off
$90.00
You save $10.00
How it's calculated
- Find the discount: 10% of $100 = $100 × 0.1 = $10.00
- Subtract it from the price: $100 − $10.00 = $90.00
Shortcut: with 10% off you pay 90% of the price, so multiply $100 × 0.9 = $90.00 in one step.
Sales tax, if any, is usually added after the discount and isn't included here.