Percentage Change Calculator

Calculating the percentage change from two numbers is a very common math problem to solve. In this article, we'll cover how to calculate the percentage difference with links to example calculations.

Looking for percentage worksheets? Click here to see all of our free percentages worksheets.

Enter your numbers into the boxes below below and click "Calculate" to work out the percentage increase or decrease.


There are a couple of simple steps we need to follow to find out the percentage change between the two numbers. Let's say we want to work out the percentage difference from 50 to 100. First, we deduct 50 from 100:

100 - 50 = 50

Next, we divide the answer, 50, by the original 50:

50 ÷ 50 = 1

Finally, to make it a percentage, we multiply 1 by 100:

1 × 100 = 100%

Practice Percentage Worksheets

Like most math problems, percentages is something that will get much easier for you the more you practice the problems and the more you practice, the more you understand.

Whether you are a student, a parent, or a teacher, you can create your own percentage worksheets using our percentages worksheet generator. This completely free tool will let you create completely randomized, differentiated, percentage problems to help you with your learning and understanding of percentages.

Practice Percentage Changes Using Examples

If you want to continue learning about how to calculate a change in percentage between two numbers, take a look at the random calculations in the sidebar to the right of this blog post.

We have listed some completely random percentage change examples that you can follow along with to help you work through a number of problems.

Each article will show you, step-by-step, how to work out the percentage increase or decrease and will help students to really learn and understand this process.

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