Bird's Eye Treehouses, Inc., a Kentucky company, has determined that a majority of its customers are located in the Pennsylvania area. It therefore is considering using a lockbox system offered by a bank located in Pittsburgh. The bank has estimated that use of the system will reduce collection time by 2 days. Assume 365 days a year. Average number of payments per day 870 Average value of payment $ 820 Variable lockbox fee (per transaction) $ .20 Annual interest rate on money market securities 4.6 % a. What is the NPV of the new lockbox system? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. Suppose in addition to the variable charge that there is an annual fixed charge of $4,000 to be paid at the end of each year. What is the NPV now? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) Every two weeks, No More Pencils, Inc., disburses checks that average $92,000 and take seven days to clear. How much interest can the company earn annually if it delays transfer of funds from an interest-bearing account that pays .011 percent per day for these seven days? Ignore the effects of compounding interest. (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)