Exercise 10-6 Rattino Company purchased a new machine on October 1, 2017, at a cost of $134,000. The company estimated that the machine will have a salvage value of $12,500. The machine is expected to be used for 10,600 working hours during its 4-year life. Compute the depreciation expense under straight-line methad for 2017. (Round answer to 0 decimal places, e.g. 2,125.) 2017 Depreciation expenser Compute the depreciation expense under units-of-activity for 2017, assuming machine usage was 1,670 hours. (Round answer to 0 decimal places, e.g. 2,125.) 2017 Depreciation expense Compute the depreciation expense under declining-balance using double the straight-line rate for 2017 and 2018. (Round answers to 0 decimal places, e.g. 2,125.) 2017 2018 Depreciation expense