What is 80% of 20?

80% of 20 = 16

How to work it out

1. Convert the percentage to a decimal: 80 ÷ 100 = 0.8
2. Multiply by the number: 0.8 × 20 = 16

20 increased by 80% is 36; decreased by 80% it is 4 (useful for discounts).

Calculate any percentage

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