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12.5%
25 is 12.5% of 200
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The formula
Percentage = part ÷ whole × 100
How to work out what percent one number is of another
- 1.Divide the part by the whole.
- 2.Multiply by 100 to turn the decimal into a percentage.
Worked example
25 is what percent of 200?
- 25 ÷ 200 = 0.125
- 0.125 × 100 = 12.5%
25 is 12.5% of 200.
Getting the two numbers the right way round
The whole is the total you are measuring against, and it goes on the bottom. If your answer is over 100% and you did not expect that, the two numbers are probably swapped.
Common questions
How do I work out what percentage one number is of another?
Divide the first number by the second, then multiply by 100. 25 out of 200 is 0.125 × 100, which is 12.5%.
How do I turn a test score into a percentage?
Divide the marks you scored by the total marks available, then multiply by 100. Scoring 36 out of 40 is 36 ÷ 40 × 100, which is 90%.
What if the first number is bigger than the second?
You get an answer above 100%, which is correct. 250 out of 200 is 125%.
Other percentage calculations
How it works
The formula
Percentage = part ÷ whole × 100
How to work out what percent one number is of another
Divide the part by the whole. Multiply by 100 to turn the decimal into a percentage.
Getting the two numbers the right way round
The whole is the total you are measuring against, and it goes on the bottom. If your answer is over 100% and you did not expect that, the two numbers are probably swapped.