Mullen Company purchased a new machine costing $55,200 on January 1, 2017. The machine is expected to have a $3,600 salvage value at the end of its useful life of six years. What is the depreciation expense that Mullen Company records for 2017 using the double-declining-balance method?
(A) $8,600
(B) $17,200
(C) $9,200
(D) $18,400