David Brown has $$20,000\mathrm{.}00$ invested in American Cyanamid, $$15,000\mathrm{.}00$ in Gannett Company, and $$30,000\mathrm{.}00$ in Texas International. If American Cyanamid has an expected return of $15\mathrm{.}00\%,$ Gannett an expected return of $25\mathrm{.}00\%,$ and Texas International an expected return of $30\mathrm{.}00\%,$ what is the portfolio's expected return? $($Answer the number of percentage, e$.$g$,$ if your answer is $10\%,$ answer $10$ in the answering area. Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$