What is 20% of 40?
20% of 40 = 8
40 × 20/100 = 8
How to calculate 20% of 40
Multiply 40 by 20 and divide by 100: 40 × 20 ÷ 100 = 8. Equivalent shortcut: 40 × 0.2 = 8.
As a discount
A 20% discount on a 40 purchase saves you 8, so you pay 32. Stacking more discounts? Use the Discount & Tax Calculator — stacked discounts multiply, they don't add.
Related percentages
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