basic

Percent Change Calculator

Percent increase or decrease between two values.

Compute the percent change between an old value and a new value, with the absolute difference and direction.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
Was this helpful?

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 − old) / |old| × 100

In depth

Compute the percent change between an old value and a new value, with the absolute difference and direction.