how to calculate compound annual growth rate cagr 
c a g r e v b v 1 n 1 100 where e v ending value b v beginning value n number of years begin aligned cagr left left frac ev bv right frac1n 1 right times100 textbf where ev text ending value bv text beginning value n text number of years end aligned cagr bvev n1 1 100where ev ending valuebv beginning valuen number of years to calculate the cagr of an investment the cagr formula gives an annualized rate of return which is useful for comparing the performance of different investments over time 