Codiac Corp. 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. The required return is 0.81 percent per month.

Current Policy New Policy Price per unit $ 200 $ 204 Cost per unit $ 152 $ 156 Unit sales per month 1,470 1,510

Calculate the NPV of the decision to change credit policies. (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places. (e.g., 32.16))