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How to Calculate Percentage Increase or Decrease

Introduction

This guide explains how to calculate percentage increase or decrease.

Steps to Calculate Percentage Increase

1. Enter the Original Value:
   Enter the starting value.

2. Enter the New Value:
   Enter the ending value.

3. Calculate the Increase:
   The percentage increase will be displayed automatically.

Steps to Calculate Percentage Decrease

1. Enter the Original Value:
   Enter the starting value.

2. Enter the New Value:
   Enter the ending value.

3. Calculate the Decrease:
   The percentage decrease will be displayed automatically.

Formulas

The formula to calculate percentage increase is:

Percentage Increase = ((New Value - Original Value) / Original Value) * 100

The formula to calculate percentage decrease is:

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

Example

If the original value is 100 and the new value is 120, what is the percentage increase?

Percentage Increase = ((120 - 100) / 100) * 100 = 20%

If the original value is 100 and the new value is 80, what is the percentage decrease?

Percentage Decrease = ((100 - 80) / 100) * 100 = 20%

Related Guides

• Percentage Calculator Overview
• How to Use the Percentage Calculator
• Understanding Percentage Calculations

Calculate percentage increase or decrease easily!