Suppose Autodesk stock has a beta of 2.17, whereas Costco stock has a beta of 0.70. If the risk-free interest rate is 4.5% and the expected return of the market portfolio is 13.5%, what is the expected return of a portfolio that consists of 55% Autodesk stock and 45% Costco stock, according to the CAPM? The expected return is %. (Round to two decimal places.)