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Percentage Change Calculator

Initial Value:

Final Value:

Round (decimal places):


The percentage change calculator is used to calculate the exact percentage increase or percentage decrease from one initial value or number to another final value. For a detailed explanation of how this perecentage change calculator works and how to calculate percentage change see below.

How to Calculate Percentage Change

The formula used to calculate percentage change is the following: Percentage Change (%) = (Final Value - Initial Value)Initial Value × 100.

Using this formula, when numbers increase, you can work out the percentage increase. Conversely, when numbers decrease, you can work out the percentage decrease.

Percentage increase example:

If your mortgage payment is increasing from $875 to $950 per month, you may wish to know what the percentage increase in your new mortgage is. Using the equation above we get:

  • Percentage Change (%) = (Final Value - Initial Value)Initial Value × 100.

  • Percentage Change (%) = (950 - 875)875 × 100.

  • Percentage Change (%) = 75875 × 100.

  • Percentage Change (%) = 0.0857 × 100.

  • Therefore, the monthly mortgage payment in this example increased by 8.57%.


Though every effort has been made to test this calculator, we are not to be held liable for any special, incidental, indirect or consequential damages or monetary losses of any kind arising out of or in connection with the use of any of the calculator tools and information sourced from this website. This calculator is provided as a service to you, please use at your own risk. Do not use calculations for anything where loss of life, money, property, etc could result from inaccurate calculations.

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