What is 50% off $30?

How it's calculated

1. Find the discount: 50% of $30 = $30 × 0.5 = $15.00
2. Subtract it from the price: $30 − $15.00 = $15.00

Shortcut: with 50% off you pay 50% of the price, so multiply $30 × 0.5 = $15.00 in one step.

Sales tax, if any, is usually added after the discount and isn't included here.