What is 18% of 40?

18% of 40 = 7.2

How to work it out

1. Convert the percentage to a decimal: 18 ÷ 100 = 0.18
2. Multiply by the number: 0.18 × 40 = 7.2

40 increased by 18% is 47.2; decreased by 18% it is 32.8 (useful for discounts).

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