A portfolio is composed of two stocks, A and B. Stock A has a standard deviation of return of 43%, while stock B has a standard deviation of return of 24%. The correlation coefficient between the returns on A and B is 0.53. Stock A comprises 54% of the portfolio, while stock B comprises the rest of the portfolio. The standard deviation of the return on this portfolio is ________. Write your answer in percentage format, and round your answer to 2 decimal places.'