Percentage Change Calculator
Percentage Change
Calculate the percentage increase or decrease between two values.
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Understanding Percentage Change
Percentage change is used to track how a value has shifted over time or relative to another value. It's a fundamental tool in finance, statistics, and daily life.
Increase vs. Decrease
If the new value is higher than the original, you have a percentage increase (positive number). If it's lower, you have a percentage decrease (negative number).
Logic & Formulas
The formula for percentage change is:
((New Value - Old Value) / |Old Value|) * 100
We use the absolute value of the original number in the denominator to ensure the direction of change (increase or decrease) is correctly identified, even when dealing with negative numbers.