You own a portfolio that is 28 percent invested in Stock X, 20 percent in Stock Y, and 52 percent in Stock Z. The expected returns on these three stocks are 8 percent, 19 percent, and 15 percent, respectively. What is the expected return on the portfolio? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Portfolio expected return %