QUESTION TWO - 15 MARKS DuPage Company purchases a factory machine at a cost of $17,500 on June 1, 2021. The machine is expected to have a residual value of $1,500 at the end of its four-year useful life on May 31, 2025. DuPage has a December 31 year end. During its useful life, the machine is expected to be used for 10,000 hours. Actual annual use was as follows: 1,300 hours in 2021;2800 hours in 2022; 3,300 hours in 2023; 1900 hours in 2024 and 900 hours in 2025. (b) Units of Production Method