Computing Depreciation Under Straight-Line and Double-Declining-Balance for Partial Years A machine costing $218,700 is purchased on May 1 , Year 1 . The machine is expected to be obsolete after three years (36 months) and, thereafter, no longer useful to the company. The estimated salvage value is $8,100. Compute depreciation expense for both Year 1 and Year 2 under each of the following depreciation methods: a. Straight-line (Round to nearest dollar) b. Double-declining-balance (Round to nearest dollar)