At the beginning of the month, you owned $5,000 of General Dynamics, $6,000 of Starbucks, and $9,000 of Nike. The monthly returns for General Dynamics, Starbucks, and Nike were 7.80 percent, 1.72 percent, and 0.72 percent. What is your portfolio return? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Portfolio return %