Bird's Eye Treehouses, Inc., a Kentucky company, has determined that a majority of its customers are located in the Pennsylvania area. Therefore, it 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.

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.)