How much is in your daily gain$/$loss after mark$-$to$-$market after you buy $30$ long July corn future contracts when corn is $$3\mathrm{.}40$ per bushel, each contract is for $100,000$ bushels, this exchange also requires a $10\%$ initial margin, and then corn prices rise by $$0\mathrm{.}007($keep in mind that $$$$0\mathrm{.}007$ is less than $$0\mathrm{.}01$ or $1$ cent$).$