Metlock Company purchased a new plant asset on April 1, 2020, at a cost of $741,000. It was estimated to have a service life of 20 years and a salvage value of $56,400. Metlock accounting period is the calendar year. Compute the depreciation for this asset for 2020 and 2021 using the sum-of-the-years-digits method. (Round answers to 0 decimal places, es. 45.892.) Depreciation for 2020 Depreciation for 2021 Compute the depreciation for this asset for 2020 and 2021 using the double-declining-balance method. (Round answers to 0 decimai places, es. 45,892.) Depreciation for 2020 Depreciation for 2021