Carla Vista Limited purchased a machine on account on April 2, 2018, at an invoice price of $393,310. On April 4, it paid $1,900 for delivery of the machine. A one-year, $3,720 insurance policy on the machine was purchased on April 5. On April 18, Carla Vista paid $7,210 for installation and testing of the machine. The machine was ready for use on April 30. Carla Vista estimates the machine's useful life will be five years or 6,391 units with a residual value of $83,610. Assume the machine produces the following numbers of units each year: 907 units in 2018; 1,481 units in 2019; 1,427 units in 2020; 1,379 units in 2021; and 1,197 units in 2022. Carla Vista has a December 31 year end. Determine the cost of the machine. Cost of the machine Calculate the annual depreciation and total depreciation over the asset's life using: (Round the depreciation cost per unit to the nearest cent. Round answers to 0 decimal places, e.g. 5,275.) (1) Straight-line method Year Depreciable Cost Depreciation Expense Accumulated Depreciation Carrying Amount 2018 2019 2020 2021 2022 2023 (2) Double-diminishing-balance method Year Opening Carrying Amount Depreciation Expense Accumulated Depreciation Carrying Amount 2018 2019 2020 2021 2022 2023 (3) Units-of-production method Year Units-of-production Depreciation Expense Accumulated Depreciation Carrying Amount 2018 2019 2020 2021 2022 Which method causes net income to be lower in the early years of the asset's life