Percent Change Calculator
Calculate the percentage change (increase or decrease) between two values.
Enter Values
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Common Examples
Percent Change
+25.00%
Increase of 25
Calculation
Difference = New - Old
= 125 - 100 = 25
Percent Change = (Difference / |Old|) x 100
= (25 / 100) x 100 = 25.00%
Additional Metrics
Absolute Change25
Ratio (New/Old)1.2500
Multiplier1.2500x
Old as % of New80.00%
Interpretation
The value increased from 100 to 125, which is a 25.00% increase.
Percent Change Formula
Formula
Percent Change = ((New - Old) / |Old|) x 100
Result Interpretation
Positive result = Increase
Negative result = Decrease
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
📚
Formula Source: Handbook of Mathematical Functions
by Abramowitz & Stegun
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.