At the beginning of the month, you owned $$5,000$ of General Dynamics, $$7,000$ of Starbucks, and $$8,000$ of Nike. The monthly returns for General Dynamics, Starbucks, and Nike were $7\mathrm{.}40$ percent, $1\mathrm{.}64$ percent, and $0\mathrm{.}68$ percent. What is your portfolio return? $($Do not round intermediate calculations and round your final answer to $2$ decimal places.