Tamu is considering the implementation of a lockbox collection system for its mid-western and western sales regions. Sales in those two regions are 40 percent of Tamus annual sales of $600 million. The lockbox system will cost $160,000 a year and reduce collection time by 3 days. If Tamu could invest any released funds at 8 percent, should it use the lockbox system? Why or why not? Assume 365 days per year