You're thinking about buying yourself a printer instead of paying for individual pages at school printers. You found a decent inkjet printer on Amazon for $40, and some ink for $35. You estimate that you could save $5 a month for the next 3 years with this thing. Given a discount rate of 10%, should you buy the printer? Calculate the profitability index and round to two decimal places. Assume that you won't have to buy another ink cartridge and the printer will have zero value by the end of 3 years.