At the beginning of the month, you owned $5,000 of General Dynamics, $4,000 of Starbucks, and $7,000 of Nike. The monthly returns for General Dynamics, Starbucks, and Nike were 7.50 percent, -1.66 percent, and -0.69 percent. What is your portfolio return? (Do not round intermediate calculations and round your final answer to 2 decimal places.) Portfolio return +