$12.$The York Company has arranged a line of credit that allows it to borrow up to $$40$ milion at any time. The interest rate is $\mathrm{.}616$ percent per month. Additionally, the company must deposit $5$ percent of the amount borrowed in a non$-$interest bearing account. The bank uses compound interest on its line$-$of$-$credit loans. What is the effective annual rate on this line of credit?