Percentage calculator

Work out X% of a number, what percentage one number is of another, and the percentage change from one value to another.

X% of Y is Y × X ÷ 100. A as a percentage of B is A ÷ B × 100. The percentage change from A to B is (B − A) ÷ A × 100.

How it works

Percentage change and percentage points are different: a rate going from 4% to 5% is a rise of one percentage point but a 25% increase.

Going up 50% and then down 50% does not get you back where you started: 100 → 150 → 75. Percentage changes multiply; they do not add.

For a change over several years, the compound annual growth rate is the fairer average; see the CAGR calculator.

Examples

Input (A% of B)

18
450

Result

18% of 450 is 81

Input (% change from A to B)

80
100

Result

From 80 to 100 is an increase of 25%

These examples are run by the tool itself in our automated tests, so the results shown are what it really returns.

Legal entity

Devansh Yadav

Moradabad, Uttar Pradesh

Governing law: Courts at Moradabad, Uttar Pradesh

Phone: +91 8433475698

X% of Y is Y × X ÷ 100. A as a percentage of B is A ÷ B × 100. The percentage change from A to B is (B − A) ÷ A × 100.

Percentage change and percentage points are different: a rate going from 4% to 5% is a rise of one percentage point but a 25% increase.

Going up 50% and then down 50% does not get you back where you started: 100 → 150 → 75. Percentage changes multiply; they do not add.

For a change over several years, the compound annual growth rate is the fairer average; see the CAGR calculator.

Input (A% of B)

18
450

Result

18% of 450 is 81

Input (% change from A to B)

80
100

Result

From 80 to 100 is an increase of 25%

These examples are run by the tool itself in our automated tests, so the results shown are what it really returns.

Legal entity

Devansh Yadav

Moradabad, Uttar Pradesh

Governing law: Courts at Moradabad, Uttar Pradesh

Phone: +91 8433475698