# How To Calculate Percentage Decrease?

Learn Here How to Calculate % Percentage Decrease or Percent Change.

## Calculate Percent Change

**% Percentage decrease** is a measure of **percent change**. It is defined as the amount lost by each hundred. The percentage decrease is calculated by subtracting original value from new value and then dividing it by original value and multiplying the result by 100.

This is a short tutorial that explains you on how to calculate percentage decrease with pictures.

**Formula:**

**Percentage Decrease = (Original Number - New Number) / Original Number * 100**

**Step 1:** Let the original value be 500 and the new value be 300. Find the percent change.

Given,

Original Value = 500

New Value = 300

**Step 2:** Substitute the values in the percent change formulas,

Percentage Decrease = (Original Number - New Number) / Original Number * 100

= (500 - 300) / 500 * 100

= 200 / 500 * 100

= 0.4 * 100

= 40 %

Calculate percent (%) change online with percentage decrease calculator.

## Related Topics