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Percentage Difference Calculator
Find the percent change between any two numbers — great for prices, scores, growth, and inflation.
%
25% of 200 is
50.00
Growth, Discounts, Comparisons
Pick the "% change X→Y" mode below. Enter the starting value and the new value; we'll return the percentage change.
% Change = ((New − Old) / Old) × 100
- 100 → 125: +25%
- 200 → 150: −25%
- 50 → 75: +50%
- 1000 → 890: −11%
Frequently Asked Questions
What's the formula for percentage change?
((New − Old) / Old) × 100. If the result is negative, it's a decrease; positive is an increase.
Percentage change from 100 to 150?
+50%. Formula: (150 − 100) / 100 × 100 = 50%.
Percentage change from 200 to 150?
−25% (a 25% decrease).
Difference vs change — are they the same?
Slightly different. Percentage difference uses the average of both values; percentage change uses the starting value. Most people mean 'change'.