A company purchased a machine for $190,000. The machine has an estimated useful life of 8 years and a salvage value of $10,000. It is estimated that the machine could produce 75,000 parts over its useful life. In the first year, 15,000 parts were produced. In the second year, 19,000 parts were produced. Using the units-of-activity/production method, what is the net book value of the machine at the end of the second year