A company purchased a service machine for $450,000 on January 1. The company expects the equipment to last for eight years or 88,000 units of output, with $10,000 an estimated salvage value $10,000. During the first year, the machine produced 9,000 units. Compute the depreciation expense relating to the equipment for Year 1 using the following depreciation methods: Prepare the necessary December 31 journal entry to record depreciation . Show all calculations for full points a. Straight-line. b. Double-declining-balance. c. Units-of-production.