22. Glenn Medical Center has seen a growth in patient volume since its primary competitor decided to relocate to a different area of the city. To accommodate this growth, a consul- tant has advised Glenn Medical to invest in a positron-emission tomography (PET) scanner. The cost to implement the unit would be $4,000,000. The useful life of this equip- ment is typically about six years, and it will be depreciated over a six-year life to a $400,000 salvage value. Additional patient volume will yield $3,000,000 in new revenues the first year. These first-year total revenues will increase by $600,000 each year thereafter, but the unit is expensive to operate. Additional staff and variable costs, excluding depreciation expense, will come to $2,200,000 the first year, but these expenses are expected to rise by $400,000 each year thereafter. Over the life of the machine, net working capital will increase by $18,000 per year for six years. a. Assuming that Glenn Medical Center is a nontaxpaying entity, what is the project's NPV at a discount rate of 9 percent, and what is the project's IRR? Depending on the method used, what is the investment decision