Deuce Company purchased a truck for $80,000 on January 1, 2018. The asset has an expected salvage value of $8,000 at the end of its eight-year useful life.

Calculate depreciation expense in 2019 (the second year), assuming straight-line depreciation.

Calculate depreciation expense in 2019 (the second year), assuming double-declining balance depreciation.

Calculate depreciation expense in 2019 (the second year), assuming sum-of-years digits depreciation.