What is 80% of 40?
80% of 40 = 32
40 × 80/100 = 32
How to calculate 80% of 40
Multiply 40 by 80 and divide by 100: 40 × 80 ÷ 100 = 32. Equivalent shortcut: 40 × 0.8 = 32.
As a discount
A 80% discount on a 40 purchase saves you 32, so you pay 8. Stacking more discounts? Use the Discount & Tax Calculator — stacked discounts multiply, they don't add.
Related percentages
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