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 %