ABC Company adjusts its accounts at the end of each month. The company's computers are being depreciated over a five-year period with no salvage value, and on May 1, its adjusted trial balance shows the following: Computers............ Accumulated Depreciation-Computers... Required: 1. Prepare the month end adjusting entry for May. 27,000 10,800 2. Compute the company's net book value or carrying value of Computers as of December 31.