accessorize currently sells 219 units per month at a price of $46 per unit. if it switches to a net 30 credit policy, monthly sales are expected to increase by 28 units. the monthly interest rate is .57 percent and the variable cost per unit is $21. what is the net present value of the proposed credit policy switch? a) $112,145 b) $108,895 c) $106,507 d) $586,799 e) $621,135
