On January 1, 2021, the Excel Delivery Company purchased a delivery van for $48,000. At the end of its five-year service life, it is estimated that the van will be worth $3,000. During the five-year period, the company expects to drive the van 175,000 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.)

Year	Miles	Depreciation
2021	37,000	$9,514
2022	39,000	10,029
2023	30,000	7,714
2024	35,000	9,000
2025	36,000	???
Total