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Math Calculators

Percentage Change Calculator

Calculate the percentage increase or decrease between an old value and a new value.

Percentage change
Absolute difference
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About the Percentage Change Calculator

Percentage change measures how much a value has increased or decreased relative to its original value, expressed as a percentage. A positive result means an increase; a negative result means a decrease.

Formula: Percentage Change = ((New Value − Old Value) ÷ |Old Value|) × 100

This is commonly used to track changes in price, salary, weight, population, stock value and more.

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