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Percentage Change Calculator

Percentage increase or decrease between two values.

Compute the percentage change from an original value to a new value — positive for an increase, negative for a decrease.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

% change = (New − Original) / Original × 100

In depth

Compute the percentage change from an original value to a new value — positive for an increase, negative for a decrease.