Percentage Calculator

Instantly solve the most common math problems: finding a percentage, and calculating percentage growth.

Solve the 3 most common percentage problems instantly.

What is% of?

30.00

is what % of?

20.00%

Percentage Increase/Decrease

Fromtois a

50.00% increase

How to use the Percentage Calculator

Use the first row to calculate a specific percentage of a number (e.g., what is 20% of 150).

Use the second row to find out what percentage one number is of another (e.g., 30 is what percent of 150).

Use the third row to calculate the percentage increase or decrease between two numbers over time.

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How do I calculate what percentage one number is of another?

Use the second row of the calculator. Mathematically, you divide the first number by the second number, and then multiply by 100.

How is percentage difference calculated?

The formula for percentage increase or decrease is: ((New Value - Old Value) / Old Value) × 100.