Percentage Change Calculator

Our free percentage change calculator (% change calculator) will determine percentage changes between the old number and the new number.

Calculate

Old number

New number

Answer/Formula:

% = \frac{n _{2} - n _{1}}{∣ n _{1} ∣} * 100% = \frac{120 - 100}{∣100∣} * 100% = 20%

To determine percentage change between two numbers, subtract an old value from new divide the result to old number, and multiply the whole by 100.