9 1 pts Wilson Plastics bought factory equipment on January 1st, 2007. The cost of the equipment was $36,000. Wilson estimated the equipment's useful life and salvage value at 6 years and $6,000, respectively. Wilson's fiscal year end is December 31st and the company elected to depreciate the equipment on a straight-line basis. At the beginning of fiscal 2009, i.e. after two years, Wilson changed its estimates of the equipment's useful life and salvage value to 7 years and $4,000, respectively. Fiscal 2009 revised straight-line depreciation would have been