Percentage Difference Calculator

Use our free percentage difference calculator to find the percent difference between two values. Uses the standard formula: absolute difference divided by the average.

Math

First Value

Second Value

Formula

Percentage difference measures how far apart two numbers are, relative to their average. It is always expressed as a positive percentage.

Difference = |V₁ − V₂| / ((V₁ + V₂)/2) × 100%

Percentage: The percentage value you want to apply

Number: The original number or value

Result: The calculated result

How It Works

1Enter the first value.
2Enter the second value.
3Click Calculate to find the percentage difference.
4The result shows the percent difference along with a step-by-step breakdown.

Examples

Difference between 100 and 150

1.Enter 100 as the first value.
2.Enter 150 as the second value.
3.Absolute difference: |100 − 150| = 50.
4.Average: (100 + 150) / 2 = 125.
5.Percentage difference: (50 / 125) × 100 = 40%.

Result: 40%

Frequently Asked Questions

Percentage difference compares two values symmetrically using their average. Percentage change compares a new value to an original value and can be positive or negative.

If the two values are equal and opposite (e.g., 100 and -100), the average is zero and the percentage difference is undefined.

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CalculateMe Team

Last updated: 2026-07-13

Percentage Difference Calculator

Formula

How It Works

Examples

Difference between 100 and 150

Frequently Asked Questions

What is the difference between percentage difference and percentage change?

What if the average is zero?

Related Calculators

Percentage Difference Calculator

Formula

How It Works

Examples

Difference between 100 and 150

Frequently Asked Questions

What is the difference between percentage difference and percentage change?

What if the average is zero?

Related Calculators