Your firm is contemplating the purchase of a new $720,000 computer-based order entry system. The system will be depreciated straight-line to zero over its four-year life. It will be worth $100,000 at the end of that time. You will save $260,000 before taxes per year in order processing costs, and you will be able to reduce working capital by $50,000 (this is a one-time reduction). If the tax rate is 35 percent, what is the IRR for this project?

Please use formulas not excel.