Princeton Manufacturing Company is considering the following investment proposal: Operations (per year for 4 years): Calculate the payback period for this investment. What is your opinion of this investment? Calculate the accounting ROR on this investment. Show your work for full credit. Using a financial calculator or Excel, calculate the NPV of this investment if the cost of capital is 8%. Show the data you use but you don't have to give me the Excel spreadsheet. Should the company invest in this project? Can you support this answer with any of your previous calculations and which one