Happy Times currently has an all-cash credit policy. It is considering making a change in the credit policy by going to terms of net 30 days. Based on the following information, what is the NPV of the new policy? The required return is 3 percent per month. Current Policy New Policy Price per unit $380 $400 Cost per unit $260 $250 Unit sales per month 2,500 2,700 $-146,583 None of these choices $-134,083 $186,750 $174,250