4) Brooks and Son's purchased a machine for $2,500,000 with a $20,000 salvage value and a 4year useful life. The machine has a production capacity of 5,500 units and was purchased on May 1, 2018. Determine the depreciation and year-end book value (i.e., on 31 Dec.) for each year under the straight-line method (show your calculations and your results on the following table)