Ty CTS Bought truck for $ $80,000 and salvage value $ 8,000 and life is 4 years Calculate depreciation using: 1. Straight-line depreciation 2. Declining balance method Units of activity method: Van is expected to have a 100,000 of useful miles. In year 2011 the number of miles van was useds 40,000, in 2012- 30, 000 miles, 2013- 20,000 miles; and 201 10,000 miles. 3. Double-declining balance method