Percentage Calculator
Calculate percentages easily
How to Use
1
Choose calculation
Select: percent of number, what percent, or percent change.
2
Enter values
Fill in the known values.
3
View result
See the calculated answer with formula shown.
4
Copy result
Copy the answer for your use.
Frequently Asked Questions
How do I calculate percentage of a number?
Multiply the number by the percentage and divide by 100. Example: 25% of 80 = 80 × 25 ÷ 100 = 20.
How do I find what percentage one number is of another?
Divide the part by the whole and multiply by 100. Example: 20 is what % of 80? 20 ÷ 80 × 100 = 25%.
How do I calculate percentage change?
(New - Old) ÷ Old × 100. Example: 80 to 100 = (100-80) ÷ 80 × 100 = 25% increase.
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