You've worked out a line of credit arrangement that allows you to borrow up to $$70$ million at any time. The interest rate is $\mathrm{.}391$ percent per month. In addition, $5$ percent of the amount that you borrow must be deposited in a non$-$interest bearing account. Assume that your bank uses compound interest on its line of credit loans. Suppose you need $$15$ million today and you repay it in eight months. How much interest will you pay?