Computing Depreciation Under Straight-Line and Double-Declining-Balance (LO3) A delivery van costing $21, 000 is expected to have a $1, 800 salvage value at the end of its useful life of five years. Assume that the truck was purchased on January 1. Compute the depreciation expense for the first two calendar years under the following depreciation methods: a. Straight-line b. Double-declining-balance Computing depreciation Under Straight-Line and Double-Declining-Balance for Partial Years (LO3) A company with a calendar year-end, purchases a machine costing $144, 000 on July 1, 2013. 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 $6, 000. The company's depreciation policy is to record depreciation for the portion of the year that the asset is in service. Compute depreciation expense for both 2013 and 2014 under the following depreciation methods