Speedy Delivery Company purchases a delivery van for $30,400. Speedy estimates that at the end of its four-year service life, the van will be worth $5,200. During the four-year period, the company expects to drive the van 157,500 miles. Actual miles driven each year were 42,000 miles in year 1 and 46,000 miles in year 2 . Required: Calculate annual depreciation for the first two years of the van using each of the following methods. (Do not round your intermediate calculations.) 1. Straight-line. 2. Double-declining-balance