Ernie Bilko has a business idea. He wants to rent an abandoned gas station for just the months of November and December. He will convert the gas station into a drive$-$through Christmas wrapping station. Customers will drive in$,$ drop off their gifts, return the next day, and pick up their wrapped gifts. He needs $$338,500$ to rent the gas station, purchase wrapping paper, hire workers, and advertise. If he borrows this amount at $6\mathrm{.}5\%$ interest for those two months, what size lump sum payment will he have to make to pay off the loan? $($Round your answer to the nearest cent.$)$