You manage your own investment portfolio and have allocated all the funds in the portfolio in a popular Growth ETF, which pays no dividends. The table below shows the market value at the beginning and at the end of each year. It also shows the cash inflows and h outflows of cash during the last four years. You bought 100 shares at the beginning of Year One (this is your initial investment). What is the Arithmetic rate of return of this portfolio during the four years shown below? Enter your answer as a full percentage number, for example, if your answer is 9.57%, you must enter 9.57 only. Value at Value at the the Beginning End of the year Shares held at the end of the Year of the year year 1 $197.5 $237.5 122 N $237.5 $250.7 136 3 $250.7 $262.9 110 4 $262.9 $258.9 101