| Period | Month | Depreciation | Accumulated | Book value |
|---|---|---|---|---|
| 1 | 2021-02 | $31.69 | $31.69 | $1,169.31 |
| 2 | 2021-03 | $31.69 | $63.38 | $1,137.62 |
| 3 | 2021-04 | $31.69 | $95.07 | $1,105.93 |
| 4 | 2021-05 | $31.69 | $126.76 | $1,074.24 |
| 5 | 2021-06 | $31.69 | $158.45 | $1,042.55 |
| 6 | 2021-07 | $31.69 | $190.14 | $1,010.86 |
| 7 | 2021-08 | $31.69 | $221.83 | $979.17 |
| 8 | 2021-09 | $31.69 | $253.52 | $947.48 |
| 9 | 2021-10 | $31.69 | $285.21 | $915.79 |
| 10 | 2021-11 | $31.69 | $316.90 | $884.10 |
| 11 | 2021-12 | $31.69 | $348.59 | $852.41 |
| 12 | 2022-01 | $31.69 | $380.28 | $820.72 |
| 13 | 2022-02 | $31.69 | $411.97 | $789.03 |
| 14 | 2022-03 | $31.69 | $443.66 | $757.34 |
| 15 | 2022-04 | $31.69 | $475.35 | $725.65 |
| 16 | 2022-05 | $31.69 | $507.04 | $693.96 |
| 17 | 2022-06 | $31.69 | $538.73 | $662.27 |
| 18 | 2022-07 | $31.69 | $570.42 | $630.58 |
| 19 | 2022-08 | $31.69 | $602.11 | $598.89 |
| 20 | 2022-09 | $31.69 | $633.80 | $567.20 |
| 21 | 2022-10 | $31.69 | $665.49 | $535.51 |
| 22 | 2022-11 | $31.69 | $697.18 | $503.82 |
| 23 | 2022-12 | $31.69 | $728.87 | $472.13 |
| 24 | 2023-01 | $31.69 | $760.56 | $440.44 |
| 25 | 2023-02 | $31.69 | $792.25 | $408.75 |
| 26 | 2023-03 | $31.69 | $823.94 | $377.06 |
| 27 | 2023-04 | $31.69 | $855.63 | $345.37 |
| 28 | 2023-05 | $31.69 | $887.32 | $313.68 |
| 29 | 2023-06 | $31.69 | $919.01 | $281.99 |
| 30 | 2023-07 | $31.69 | $950.70 | $250.30 |
| 31 | 2023-08 | $31.69 | $982.39 | $218.61 |
| 32 | 2023-09 | $31.69 | $1,014.08 | $186.92 |
| 33 | 2023-10 | $31.69 | $1,045.77 | $155.23 |
| 34 | 2023-11 | $31.69 | $1,077.46 | $123.54 |
| 35 | 2023-12 | $31.69 | $1,109.15 | $91.85 |
| 36 | 2024-01 | $31.85 | $1,141.00 | $60.00 |
The final straight-line period absorbs the rounding remainder, so accumulated depreciation equals exactly (cost − salvage) at the end of useful life. All figures are exact integer cents. Not tax or accounting advice.