An investor has just entered $3$ short copper futures contracts at a futures price of $3\mathrm{.}9$ cents per pound. The size of each contract is $25,000$ pounds. The initial margin is $$5,000$ per contract and the maintenance margin is $$3,500$ per contract. A month after opening the position, the futures price rises to $4\mathrm{.}5$ cents per pound. What is the balance of the total margin account at the end of the month? $($Assume no margin call has occurred over this period, and your answer should be to the nearest dollar without the dollar sign.$)$