Comett Associates acquired a machine on January 1 at a cost of $250.500 Coment estimates that the machine has a useful life of 10 years and a $51,000 residual value. Compute the depreciation expense for the 2 years and the net book value at the end of the second year assuming that Comet Associates uses the double-declining balance method Determine the formula to calculate the depreciation expense by using the double-declining balance (DO) method DOB depreciation expense Compute the depreciation expense for the first year and the second year using the Year 1 Year 2 DDB Depreciation Expense Determine the formula to calculate the net book value Net book value Compute the net book value at the end of the second year. Net book value at the ond of the second year uble-dedining balance method