Problem 9-13 Portfolio Return (LG9-7 Year-to-date, Oracle had earned a -135 percent return. During the same time period, Valero Energy earned 753 percent and McDonald's earned 0.34 percent If you have a portfolio made up of 20 percent Oracle, 30 percent Valero Energy, and 50 percent McDonald's, what is your portfolio return? (Round your answer to 2 decimal places.)