What is 80% of 40?

80% of 40 = 32

How to work it out

1. Convert the percentage to a decimal: 80 ÷ 100 = 0.8
2. Multiply by the number: 0.8 × 40 = 32

40 increased by 80% is 72; decreased by 80% it is 8 (useful for discounts).

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