Crane Company purchased a new machine on October 1, 2024, at a cost of $126,000. The company estimated that the machine will have a residual value of $14,400. The machine is expected to be used for 10,000 working hours during its 5-year life. Crane Company': year-end is December 31. (a) Calculate the depreciation expense under the straight-line method for 2024. (Round to the nearest whole month.) 2024 Depreciation expense $