Camey Corporation purchased delivery equipment on January 1 at a cost of $300,000. The equipment is expected to have a useful life of seven years or 250,000 miles, and to have no salvage value. How much depreciation expense should e recorded during the first year using the straight line, double declining balance, and units-of production methods? During the year, the equipment was used for 80,000 miles. The company's fiscal year-end is December 31.

Assume that revenue for the year is $376, 300 and that all expenses, other than for depreciation total $225,492. Would the use of one depreciation method instead of another have a material effect on the income statement?