Having the ability to calculate the percentage difference between two figures in Excel allows you to effectively report on trends.
In the Finance arena, you would use it to see percentage difference from last year to the current year. In the HR arena, they may use this formula to work out the percentage difference between how many women and men were hired this year compared to the previous year.
To work out the percentage difference between one year and the next, you can use the following formula:
=(New Value - Old Value)/Old Value
Cell B2 contains the figure for 2000 which is 175000
Cell A2 contains the figure for 1999 which is 100000
So the percentage increase from 1999 to 2000 would be: