Difference between two numbers in percent (percentage change) formula
Description of the Difference between two numbers in percent (percentage change) formula
The formula below shows how to calculate the difference between two numbers as a percentage. This is often important in business and finance, where for example changes in profits, margins or losses from one period to the next are expressed as percentages.
Formula
\[ \text{Diff%} = \frac {C_{n} - C_{a}} {C_{a}} \ \]
Symbols
\(C_{a}\ \)
First amount
\(C_{n}\ \)
Second amount