Depreciation Methods A machine costing $10.000 was purchased May 1. The machine should be obsolete after three years and therefore, no longer useful to the company. The estimated salvage value is $18,900 Calculate the depreciation expense for each year of its expected selle using each of the following deprecation methods: (a) straight line, double-declining balance Assume the company has a calendar year end. Do not round any rates found final answers to the nearest dollar Straight line DDB 100