A company purchased a machine for $135,000 on January 1, 2022. The machine is expected to have a useful life of 10 years, salvage value of $12,000, production of 250,000 units, and number of working hours of 30,000. During 2022, the company used the machine for 2,450 hours to produce 23,450 units. Compute the book depreciation expense for 2022 using the units-of-production method