A stock sells for $700 today. At time I > 0, the stock price is either $735 with probability 70%, or $680 with probability 30%. A risk-free asset sells for $500 today and will have a value of $519 at time T. An investor with $32400 to invest today purchases a portfolio of I shares of the risky security and y shares of the risk-free asset such that there are 4 times as many shares of the risk-free asset as there are shares of the risky security Find the amount of risk (using standard deviation of the return) on this portfolio State your answer as a percentage rounded to two places after the decimal. Ky TT