Riverbed Corporation purchased a new plant asset on April 1, 2020, at a cost of $960,000. It was estimated to have a useful life of 20 years and a residual value of $360,000, a physical life of 30 years, and a salvage value of $0. Riverbed's accounting period is the calendar year. Riverbed prepares financial statements in accordance with IFRS. Calculate the depreciation for this asset for 2020 and 2021 using the straight-line method. (Round answers to 0 decimal places, e.g. 5,275.) Depreciation 2020 $ 2021 $ Calculate the depreciation for this asset for 2020 and 2021 using the double-declining-balance method. (Round answers to O decimal places, e.g. 5,275.) Depreciation 2020 $ 2021 $ Calculate the depreciation for this asset for 2020 and 2021 using the straight-line method and assuming Riverbed prepares financial statements in accordance with ASPE. (Do not round intermediate calculations and round answers to 0 decimal places, e.g. 5,275.) Depreciation 2020 $ 2021 $