Percent Difference Calculator Between Numbers

Find out by what percentage one number is greater or less than another. Fast online percentage change calculator.

Original number for comparison

Number to compare with base

Calculation Formula

Difference (%) = ((Y - X) ÷ X) × 100

To find by what percentage Y differs from X, calculate the difference (Y-X), divide by the base number X, and multiply by 100. Positive results mean increase, negative mean decrease.

Example Calculations

About the Percent Difference Calculator

This calculator helps determine the percentage change between two numbers. It shows how much the second number is greater or less than the first in percentage terms.

The tool is useful for analyzing price changes, comparing sales metrics, evaluating salary growth, analyzing statistics, comparing performance metrics, and much more.

All calculations happen in your browser, ensuring fast performance and data privacy.

Benefits

Visual Clarity

Clear display of growth (green) or decline (red) with visual indicators.

Accurate

Results with precision to two decimal places for maximum informativeness.

Universal

Works with any numbers: prices, salaries, metrics, indicators.

FAQ

What's the difference between this and 'What % is X of Y'?

The 'What % is X of Y' calculator shows proportion (50 is 25% of 200). This calculator shows change (200 is 300% greater than 50). Different concepts for different tasks.

What does a negative result mean?

A negative result means decrease. For example, -25% means the second number is 25% less than the first.

Where is this used?

Comparing prices before/after discount, analyzing salary changes, comparing metrics (sales, traffic), evaluating growth or decline of indicators.

What if the first number is zero?

The calculator will return 0% as division by zero is mathematically impossible.