Percentage Change Calculator
Find the percentage increase or decrease between two values.
Increase
+25%
Absolute change: +30
How percentage change is calculated
Percentage change measures how much a value has grown or shrunk relative to its starting point: (new − old) ÷ |old| × 100. A positive result is an increase, a negative one a decrease. For example, going from 120 to 150 is a +25% change. The original value can't be zero (you can't grow from nothing in percentage terms). Calculations run entirely in your browser.
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