Question: can you do a cagr on percentages?
Answer: If percentage growth rates are used it is important to remember to add one to each of them before calculating the geometric average. For example, the CAGR over two years of 10% one year and 20% the next is (1.1 ×1.2)1/2 - 1. ... CAGR should be used because arithmetic averaging of growth numbers gives incorrect results.