David Brown has $20,630 invested in American Cyanamid, $18125 in Gannett Company, and $29,057 in Texas International. If American Cyanamid has an expected return of 16.97%, Gannett an expected return of 18.02%, and Texas International an expected return of 16.12%, 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.)