Principle of Finance Workshop 1 Questions NPV Calculations 1. You have the opportunity to invest in a machine that costs $340,000. The machine generates revenues of $100,000 at the end of each year and requires maintenance costs of $10,000 at the beginning of each year. The machine incurs a maintenance cost today because of start-up expenses. If the economic life of the machine is five years and the relevant discount rate is 10%, should you buy the machine? What if the relevant discount rate is 9%