At the beginning of the month, you owned $9,000 of News Corp, $6,000 of First Data, and $5,000 of Whirlpool. The monthly returns for News Corp, First Data, and Whirlpool were 9.80 percent, -2.77 percent, and 11.93 percent. What's your portfolio return? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Portfolio return %