At the beginning of the month you owned $6,000 of News Corp, $5,000 of First Data, and $8,500 of Whirlpool. The monthly returns for News Corp, First Data, an hirlpool were 8.24 percent, -2.59 percent, and 10.13 percent. What's your portfolio return? (Do not round intermediate calculations and round your final answer to 2 decimal places.) Portfolio return