What is 50% of 40?
50% of 40 = 20
40 × 50/100 = 20
How to calculate 50% of 40
Multiply 40 by 50 and divide by 100: 40 × 50 ÷ 100 = 20. Equivalent shortcut: 40 × 0.5 = 20.
As a discount
A 50% discount on a 40 purchase saves you 20, so you pay 20. Stacking more discounts? Use the Discount & Tax Calculator — stacked discounts multiply, they don't add.
Related percentages
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