Pulley-Bone Fried Chicken bought equipment on January 2, 2007, for \(\$ 15,000\). The equipment was expected to remain in service 4 years and to perform 3,000 fry jobs. At the end of the equipment's useful life, PulleyBone estimates that its residual value will be \(\$ 3,000\). The equipment performed 300 jobs the first year, 900 the second year, 1,200 the third, and 600 the fourth year. Prepare a schedule of depreciation expense per year for the equipment under the three depreciation methods. After two years under double-declining-balance depreciation, the company switched to the straight-line method. Show your computations. 

Which method tracks the wear and tear on the equipment most closely?