show step by step when answering this question: Kaufman Footwear purchased a $100,000 machine that falls into Class 39 with a 16% depreciation rate. The machine is used for 4 years and then sold. What is the ending book value of the machine , rounded to the nearest dollar, at the time of sale ? $ 45,804 $ 54,529 $ 64,915 $ 49,787