Rottine Company purchased a new machine on October 1, 2015, at a cost of $150,000. for 10,000 working hours during its 5-year life. Compute the depreciation expense under straight-line method for 2015. (Round answer to 0 decimal places, e.g. 2,125.) Compute the depreciation expense under units-of-activity for 2015, assuming machine usage was 1,700 hours. (Round per hour value to 2 decimal places, e.g. 21.25 and final answer to 0decimal places, e.g. 2,125.) Compute the depreciation expense under declining-balance using double the straight-line rate for 2015 and 2016. (Round answers to 0 decimal places, e.g. 2,125.)