Depreciation and Rate of Return Burrell Company purchased a machine for $40,000 on January 2, 2019. The machine has an estimated service life of 5 years and a zero estimated residual value. The asset earns income before depreciation and income taxes of $20,000 each year. The tax rate is 30%. Required: Compute the rate of return earned (on the average net asset value) by the company each year of the asset's life under the straight-line and the double-declining-balance depreciation methods. Assume that the machine is the company's only asset. Straight-line method. If required, round to one decimal place. 2019 2020 % % 2021 % 2022 % 2023 % Double-declining-balance depreciation method. Round to two decimal places. Round your intermediate dollar value calculations to the nearest whole number. 2019 % 2020 % 2021 % 2022 % 2023 % Depreciation for Partial Periods Storm Delivery Company purchased a new delivery truck for $72,000 on April 1, 2019. The truck is expected to have a service life of 10 years or 150,000 miles and a residual value of $3,000. The truck was driven 10,000 miles in 2019 and 20,000 miles in 2020. Storm computes depreciation expense to the nearest whole month. Required: 1. Compute depreciation expense for 2019 and 2020 using the following methods: (Round your answers to the nearest dollar.) a. Straight-line method 2019 $ 2020 $ b. Sum-of-the-years'-digits method 2019 $ 2020 $ c. Double-declining-balance method 2019 $ 2020 d. Activity method 2019 2020 $ 2. 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.) a. Straight-line method 2019 $ 2020 $ b. Sum-of-the-years'-digits method 2019 $ 2020 c. Double-declining-balance method 2019 $ 2020 d. Activity method 2019 2020