Free Online Percentage Calculator
Calculate any percentage instantly. Find what is X% of Y, calculate percentage increase or decrease, or determine what percentage one number is of another.
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Enter values and click Calculate
Frequently Asked Questions
How do I calculate what percent one number is of another?
Divide the part by the whole and multiply by 100. Example: 25 out of 200 is (25/200) × 100 = 12.5%.
How do I calculate percentage increase?
Use (new value - old value) / old value × 100. A positive result is increase; a negative result is decrease.
Can percentages be greater than 100?
Yes. If the part is larger than the whole reference value, the percentage is above 100%.