c. Double-declining-balance method Feedbsck * Ginesk My Wark b. Annual units+of antivity depreciation allecetos the cost of the asset thualty over the unite prodiced (hours). cost of the asset mqually ower the period of ust, while double.declining method is an acketerated mathod Peprecation by Three Methods; Partial Years Perdue Company purchased equipment on April 1 for $93,420. The equipment was expected to have a useful life of three years, or 6,480 bperating hours, and a restdual value of $2,700. The equipment was used for 1,200 hours during Year 1,2,300 hours in Year 2, 1,900 hours in Year 3, and 1,080 hours in Year 4 . Required: Determine the amount of depreclation expense for the years ended December 31 , Year 1, Year 2, Year 3 , and Year 4; by (a) the straight-line method, (b) units-et-sctivity method, and (c) the doubie-declining-balance-method; Note: FOR DECLINING BALANCE ONLY, round the multiplier to four decimal places. Then round the answer for each year to the nearest whole doliar: a. Streight-hine method b. Uevisiof activity methad