Statistics

Percentage Change

Calculate percentage change, growth rate, and percentage difference between two values.

Reviewed & Maintained by

Aadil Malik — Software Engineer

1 min read · 27 words

What is a Percentage Change Calculator?

A percentage change calculator calculates the proportional growth or decline between an initial baseline value and a new final value.

Percentage Change = [(New Value - Old Value) / |Old Value|] * 100.

A positive result indicates a percentage increase; a negative result indicates a percentage decrease.

A 50% loss (e.g. $100 to $50) requires a 100% gain ($50 back to $100) to break even due to the smaller base value.

Percentage Difference = [|V1 - V2| / ((V1 + V2) / 2)] * 100.

1 basis point = 0.01% (or 0.0001). 100 basis points = 1.00%.

CAGR = (End Value / Start Value)^(1 / years) - 1.

Yes. An asset growing from $1 to $100 represents a 9,900% increase.

Absolute change is New - Old. Relative change is (New - Old) / Old.