How to Use
- 1
Choose the type of calculation you need: "What is X% of Y?", "X is what % of Y?", or "Percentage change from X to Y".
- 2
Enter the required values in the input fields.
- 3
The result appears instantly. Use the Swap button to reverse the inputs if needed.
Frequently Asked Questions
How do I calculate what percent X is of Y? ▼
Select the "X is what % of Y" mode, enter both values, and the percentage appears instantly. For example, 25 is 50% of 50.
Can I calculate percentage increase or decrease? ▼
Yes. Select "Percentage change" mode, enter the original value and the new value, and the calculator shows whether it is an increase or decrease and by what percentage.
How do I find what number is X% of Y? ▼
Select "What is X% of Y" mode. Enter the percentage and the base number, and the result appears instantly. For example, 20% of 150 is 30.