You are considering a risky portfolio investment, which has a 13,5 % return and 30,9 % standard deviation. The riskfree rate is 7,8 %. You plan to invest 84,6 % of your savings in risky assets. Determine the standard deviation of your potential complete portfolio, if you plan to allocate all your savings into risky and riskfree assets, and lending and borrowing is also possible. Round your answer, use 2 DIGITS.