Suppose that on October $24$ you buy $7$ March gold futures contracts for $$325$ per ounce. At $11$:$00$ am on October $25$ you buy $4$ more contracts for $$330\mathrm{.}5$ ounce. At the close of trading on October $25,$ gold futures settle for $$338\mathrm{.}0$ ounce. If the contract size is $100$ ounces and the initial margin equals $3250,$ how much do you gain or lose as of the close?