David Brown has $23,480.00 invested in American Cyanamid, $23,102.00 in Gannett Company, and $20,810.00 in Texas International. If American Cyanamid has an expected return of 15.92%, Gannett an expected return of 23.68%, and Texas International an expected return of 18.91%, 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.)