What is 15% off $30?
Price after 15% off
$25.50
You save $4.50
How it's calculated
- Find the discount: 15% of $30 = $30 × 0.15 = $4.50
- Subtract it from the price: $30 − $4.50 = $25.50
Shortcut: with 15% off you pay 85% of the price, so multiply $30 × 0.85 = $25.50 in one step.
Sales tax, if any, is usually added after the discount and isn't included here.