CanPipe Industries purchased a metal stamping machine for CAD 147,000 on March 1, 2019. It is expected to have useful life of 10 years, salvage value of CAD 27,000, production of 250,000 units, and working hours of 30,000. During 2019 CanPipe used stamping machine for 2450 hours to stamp 23,450 units of pipeline. From the information given, compute the book depreciation for 2019 under each of the following methods and comment on your answer: c. Straight-line method d. Units of production method e. Working hours f. Sum-of-years-digits g. Declining balance h. Double declining balance