How it works
- percent
- the percentage you want, such as 15
- value
- the number you are taking the percentage of
- result
- the answer, percent of the value
A percent is just a fraction out of 100, so "per cent" literally means "per hundred". 50% is one half, 25% is one quarter, and 10% is one tenth.
Frequently asked questions
What is 15% of 200?
15% of 200 is 30. Multiply 200 by 15 and divide by 100.
How do I calculate a percentage of a number?
Multiply the number by the percentage and divide by 100. For example, 20% of 50 is 50 × 20 ÷ 100 = 10.
What is 20% of 50?
20% of 50 is 10.
How do I work out a percentage in my head?
Find 10% first by moving the decimal one place left, then scale. 10% of 80 is 8, so 30% is 24.
What is 5% of 1000?
5% of 1000 is 50.
Related conversions
Need a different sum? X is what percent of Y works the other direction, and percentage change compares a before and after. To adjust a number, use percentage increase or percentage decrease. For two readings side by side there is percentage difference, and to rewrite numbers try fraction to percent or decimal to percent.