On January 1, Speedy Delivery Company purchases a delivery van for $41,600. Speedy estimates that at the end of its four-year service life, the van will be worth $6,000. During the four-year period, the company expects to drive the van 222,500 miles. Actual miles driven each year were 58,000 miles in year 1 and 64,000 miles in year 2. Required: Calculate annual depreciation for the first two years using each of the following methods.