1. (8 points) Robert Parish Corporation purchased a new machine for its assembly process on January 1,2014 . The cost of this machine was $855,000. The company estimated that the machine would have a salvage value of $55,000 at the end of its service life. Its life is estimated at 4 years, and its working hours are estimated at 80,000 hours. Year-end is December 31 . instructions Compute the depreciation expense under the following methods and complete the depreciation schedules below. (a) Straight-line depreciation. (b) Activity method, assuming that machine usage was 26,000 hours for 2014;24,000 hours for 2015;16,000 hours for 2016 and 14,000 hours for 2017. (c) Sum-of-the-years'-digits. (d) Double-declining-balance. Straight-line Double Declining Balance