Gotham Company purchased a new machine on October 1, 2017, at a cost of $90,000. The company estimated that the machine has a salvage value of $8,000. The machine is expected to be used for 70,000 working hours during its 8-year life. Compute depreciation using the following methods in the year indicated. Declining-balance using double the straight-line rate for 2017 and 2018. (Round answers to 0 decimal places, e.g. 125) 2017 2018 Depreciation using the Declining-balance method $ 2562.50 $ 19334.41 eTextbook and Media Calculate the depreciation cost per hour. (Round answer to 2 decimal places, e.g. $1.25) Depreciation cost per hour $ Units-of-activity for 2017, assuming machine usage was 480 hours. (Round answer to 0 decimal places, e.g. 125) Depreciation using the Units-of-activity method for 2017 $