You own a portfolio that is $36\%$ invested in Stock X$,20\%$ in Stock Y$,$ and $44\%$ in Stock Z$.$ The expected returns on these three stocks are $9\%,17\%,$ and $13\%,$ respectively. What is the expected return on the portfolio? $($Do not round intermediate calculations. Round the final answer to $2$ decimal places.$)$

Portfolio expected return