epreciation for Partial Periods Malone Delivery Company purchased a new delivery truck for $57,000 on April 1, 2019. The truck is expected to have a service life of 5 years or 150,000 miles and a residual value of $3,000. The truck was driven 10,000 miles in 2019 and 18,000 miles in 2020. Malone computes depreciation expense to the nearest whole month. Required: Compute depreciation expense for 2019 and 2020 using the following methods: (Round your answers to the nearest dollar.) Straight-line method 2019 A 2020 A Sum-of-the-years'-digits method 2019 2020 $ Double-declining-balance method 2019 2020 Activity method 2019 A 2020 A For each method, what is the book value of the machine at the end of 2019? At the end of 2020? (Round your answers to the nearest dollar.) Straight-line method 2019 $ 2020 A Sum-of-the-years'-digits method 2019 2020 Double-declining-balance method 2019 $ $ 2020 Activity method 2019 $ 2020 $ A A Next Level The book value of the asset in the early years of the asset's service will be under an accelerated method as compared to the straight-line method. The method is appropriate when the service life of the asset is affected primarily by the amount the asset is used