Bismark Co. is in the process of considering a change in its terms of sale. The current policy is cash only; the new policy will involve one period’s credit. Sales are 60,000 units per period at a price of $500 per unit. If credit is offered, the new price will be $540. Unit sales are not expected to change, and all customers are expected to take the credit. Bismark estimates that 4 percent of credit sales will be uncollectible. If the required return is 3 percent per period, is the change a good idea?