Hawaiian Specialty Foods purchased equipment for $25,000. Residual value at the end of an estimated four-year service life is expected to be $2,500. The machine operated for 2,500 hours in the first year, and the company expects the machine to operate for a total of 15,000 hours Calculate depreciation expense for the first year using each of the following depreciation methods: (1) straight line (2) double declining balance, and (3) activity based. (Do not round your intermediate calculations.) Depreciation Expense (1) Straight-line (2) Double-declining-balance (31 Activity-based