Newbirth Coatings Company purchased waterproofing equipment on January 2, 2009, for $380,000. The equipment was expected to have a useful life of four years, and a residual value of $36,000. Determine the amount of depreciation expense for the years ended December 31, 2009, 2010, 2011, and 2012, by (a) the straight-line method and (b) the double-declining-balance method. Also determine the total depreciation expense for the four years by each method. The following columnar headings are suggested for recording the depreciation expense amounts