Percentage Change Calculator
Calculate the percentage increase or decrease between two values.
Difference
Decrease
0%
(0)
Apply Percentage Change
%
0
Pro Tip
For a percentage decrease, enter a negative value in the percentage field (e.g., -20 for a 20% discount).
Understanding Percentage Change
Percentage change is used to track the relative difference between two values over time. It is a common tool in finance, statistics, and everyday life to measure growth or decline.
Percentage Increase
Occurs when the final value is greater than the initial value.
Formula: ((New - Old) / Old) × 100
Percentage Decrease
Occurs when the final value is less than the initial value.
Formula: ((Old - New) / Old) × 100
How to use this calculator
Use the first section to find the percentage growth or decline between two numbers. Use the second section to calculate what a number becomes after it increases or decreases by a specific percentage.