Ex. 1 Guardado Company purchased a new machine for $300,000. It is estimated that the machine will have a $30,000 salvage value at the end of its 5-year useful service life. The double-declining-balance method of depreciation will be used. Instructions Prepare a depreciation schedule which shows the annual depreciation expense on the machine for its 5-year life. Ex. 2 Conroy Company purchased a machine at a cost of $90,000. The machine is expected to have a $5,000 salvage value at the end of its 5-year useful life. Instructions Compute annual depreciation for the five years using the (a) Straight-line method. (b) double-declining-balance method