3. value 4.00 points A three-year-old machine that has a cost of $20,200, an estimated residual value of $1,700, and an estimated useful life of 37,000 machine hours. The company uses units-of production depreciation and ran the machine 3,600 hours in year 1; 6,650 hours in year 2; and 6,500 hours in year 3. Calculate the net book value at the end of the third year Net book value