CAGR
From ACT Wiki
Compound Annual Growth Rate.
Calculated - for example - from total growth over a multiple years period as: CAGR = ([End amount]/[Starting amount])(1/n) - 1 Where n = number of years
For example, sales grow from $100m to $150m over a two-year period. CAGR = (150/100)(1/2) - 1 = 22.5%.