Double-declining balance Straight-line Sum-of-the-years'-digits c. Double-Declining-Balance Depreciation Method For the Period End of Period Reporting Period Depreciation Accumulated Book Expense Depreciation Value Jan. 1, 2020 $ 20,000 Dec. 31, 2020 $ 8,000 $ 8,000 12,000 Dec. 31, 2021 4,800 12,800 7,200 Dec. 31, 2022 2,200 15,000 5,000 Dec. 31, 2023 0 0 0 Dec. 31, 2024 0 0 0