A portfolio is composed of two stocks, A and B. Stock A has an expected return of 18% and a standard deviation of return of 25%, while stock B has an expected return of 16% and a standard deviation of return of 10%. The correlation coefficient between the returns on A and B is -0.3. Stock A comprises 74% of the portfolio, while stock B comprises 26% of the portfolio. What is the standard deviation of the return on this portfolio?

Submit your answer in percentages, rounding up to the first two decimal points