Calculating Proportional Changes in Data
There is an Excel file that teaches how to perform the Calculating Proportional Changes in Data operation.
Excel Format: Calculating Proportional Changes in Data
This study was prepared to track changes in financial data. It finds the rate of increase and decrease between two values. It makes the data more meaningful by performing percentage analysis. It has a user interface that provides fast data entry. It brings Excel's financial calculation capabilities to the forefront.
Hope it is useful.