What is 50% off $40?

How it's calculated

1. Find the discount: 50% of $40 = $40 × 0.5 = $20.00
2. Subtract it from the price: $40 − $20.00 = $20.00

Shortcut: with 50% off you pay 50% of the price, so multiply $40 × 0.5 = $20.00 in one step.

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