Everyday
What is 15% of 20?
15% of 20 = 3
The answer, how it is worked out, and the percentages people look up next.
Working: 15 ÷ 100 × 20 = 3
Common questions
How do you work out 15% of 20?
Divide 15 by 100 to get the decimal, then multiply by 20. That gives 3.
What is the formula for percentages?
Percent of a number = (percent ÷ 100) × number. The same formula works for any pair of values.
How do I do this without a calculator?
Find 10% by moving the decimal one place left, then scale it. 10% of 20 is 2, so you can add or subtract tenths and halves to reach most percentages quickly.