You put 39% of your money in a stock portfolio that has an expected return of 17% and a standard deviation of 43%. You put the rest of your money in a risky bond portfolio that has an expected return of 4% and a standard deviation of 36%. The stock and bond portfolios have a correlation of 0.58. The standard deviation of the resulting portfolio will be ________. Write your answer in percentage format, and round your answer to 2 decimal places.