On January 1, 2021, the Excel Delivery Company purchased a delivery van for $52,000. At the end of its five-year service life, it is estimated that the van will be worth $4,000. During the five-year period, the company expects to drive the van 166,000 miles. Required: Calculate annual depreciation for the five-year life of the van using each of the following methods.

3. Units of production using miles driven as a measure of output, and the following actual mileage: (Do not round intermediate calculations.)