What is 9% of 20?

9% of 20 = 1.8

How to work it out

1. Convert the percentage to a decimal: 9 ÷ 100 = 0.09
2. Multiply by the number: 0.09 × 20 = 1.8

20 increased by 9% is 21.8; decreased by 9% it is 18.2 (useful for discounts).

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