Swanson & Hiller, Inc., purchased a new machine on September 1, 2012 at a cost of $110.000. The machine's estimated useful life at the time of the purchase was five years, and its residual value was $10,000. b. Which of the three methods computed in part a is most common for financial reporting purposes? Straight-line method 200 percent declining-balance method 150 percent declining-balance method