On January 1,2021 , Loeffler Company acquired a machine at a cost of $265,000. Loeffler estimates that it will use the machine for four years or 9,000 machine-hours. It estimates that after four years the machine can be sold for $13,000. Loeffler uses the machine for 1,900 and 2,300 machine-hours in 2021 and 2022, respectively. Required: Compute depreciation expense for 2021 and 2022 using the: 1. Straight-line method of depreciation. 2. Double declining balance method of depreciation. 3. Units-of-production method of depreciation