John, an investment adviser, tells Lisa that if she's willing to invest the amount of $100 today, he can increase this investment by 3 times in 4 years. What annual rate of return is John promising on this investment? % INSTRUCTIONS: Place your answer in PERCENTAGE form with at least 2 decimal places. For example, an answer of three and one-quarter percent is entered as 3.25 and not as 0.0325. ALSO, DO NOT USE A PERCENT SIGN IN YOUR ANSWER. You should work your analysis using at least four decimal places of accuracy