Solve a Solution to Demonstration Problem of Dupage Company. DuPage Company purchases a factory machine at a cost of $18,000 on January 1, 2005. The machine is expected to have a salvage value of $2,000 at the end of it 4-year useful life. During its useful life, the machine is expected to be used 160,000 hours. Actual annual hourly use was: 2005, 40,000; 2006, 60,000; 2007, 35,000; and 2008, 25,000.
