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Percentage Calculator
Calculate percentages, find what percent a number is of another, and percentage change.
How to Use the Percentage Calculator
- Select the calculation type (What is % of, % is what of, or % Change).
- Enter the required values in the input fields.
- Click Calculate to see the result instantly.
- Results update in real-time with clear labels.
Formula & Method
What is P% of X?Y = (P / 100) × X
Y is what % of X?P = (Y / X) × 100
Percentage Change:Change = ((New - Old) / |Old|) × 100
Examples
| Scenario | Input | Result |
|---|---|---|
| What is 15% of 200? | 15% of 200 | 30 |
| 30 is what % of 150? | 30 of 150 | 20% |
| % change from 100 to 150 | 100 → 150 | 50% increase |
Frequently Asked Questions
What is a percentage?
A percentage is a number or ratio expressed as a fraction of 100.
Can I calculate percentage decrease?
Yes, use the Percentage Change tab for increase or decrease.
Why is my result negative?
A negative percentage change means the new value is smaller than the original.
🔥 Popular Percentage Calculator Results
Quick links to common calculations:
People Also Ask
How do you calculate percentage increase?
Subtract the original value from the new value, divide by the original, and multiply by 100.
What is 20% of 50?
20% of 50 equals 10.
How to find what percent one number is of another?
Divide the first number by the second and multiply by 100.