Gramble Automotive purchased equipment on October 1, 2024, at a total cost of $194,000. The machine has an estimated useful life of eight years or 100,000 hours, and an estimated residual value of $54,000. During 2024 and 2025 , the machinery was used 6,900 and 15,300 hours, respectively. Calculate depreciation expense at December 31,2024 and December 31, 2025, under the following depreciation methods: (Round answers to 0 decimal ploces, es. 5,275. and Round Depreciotion cost per unit to 1 decimal places, es 527.5)