On this page is a *percent decrease calculator*. Enter your starting amount and a lower ending amount and the tool will tell you how much the decrease is before the second and first value.

## Percent Decrease Calculator

## What is the Percent Decrease Formula?

The percentage decrease formula is:

Subtract the final number from the first number (you'll be left with a negative number). Next, divide the initial number. After multiplying by 100, you'll be left with a negative percentage – that tells you how much the decrease is between the initial and final.

### Percent Decrease Formula Example

Now, let's work through an example of computing a percentage decrease. If your initial number was 100 and your final number was 50, that's a 50% decrease.

Here's how it works:

## Using the Percent Decrease Calculator

To run the calculator, enter the starting number (initial value) then the final number. Then, hit the 'Calculate' button to run the math and return a percentage.

The percent decrease calculator is a spin off of these calculators:

*Also try our other calculators and tools.*