[header] How to calculate cumulative growth [title] Identify the values needed to calculate cagr. [step] In order to calculate cagr, you will need a few essential values. This includes the starting value, ending or finishing value, and the period of time over which you wish to measure growth. 
[substeps] Determine the starting value (sv) of an asset, for example, the price paid for a share of stock. Determine the ending value (ev) or current market value of that asset.