On January 1, 2023, Loeffler Company acquired a machine at a cost of $504,000. Loeffler estimates that it will use the machine for 4 years or 10,000 machine hours. It estimates that after 4 years the machine can be sold for $24,000. Loefher uses the machine for 2,100 and 2,500 machine hours in 2023 and 2024 , respectively. Required: Compute depreciation expense for 2023 and 2024 using the: 1. Straight-line method of depreciation. 2. Dovble declining-balunce method of depreciation. 3. Unts-of-production methed of deprecistion