Final Answer:
Depreciation Schedule:
Straight-Line Method:
| Year | Depreciation Expense | Accumulated Depreciation | Book Value |
| 2024 | $5,250 | $5,250 | $21,750 |
| 2025 | $5,250 | $10,500 | $16,500 |
| 2026 | $5,250 | $15,750 | $11,250 |
| 2027 | $5,250 | $21,000 | $6,000 |
Units-of-Production Method:
| Year | Depreciation Expense | Accumulated Depreciation | Book Value |
| 2024 | $4,285 | $4,285 | $22,715 |
| 2025 | $12,856 | $17,141 | $9,144 |
| 2026 | $17,141 | $34,282 | $4,858 |
| 2027 | $8,570 | $42,852 | $0 |
Double-Declining-Balance Method:
| Year | Depreciation Expense | Accumulated Depreciation | Book Value |
| 2024 | $10,800 | $10,800 | $16,200 |
| 2025 | $8,640 | $19,440 | $10,560 |
| 2026 | $6,912 | $26,352 | $6,888 |
| 2027 | $4,800 | $31,152 | $4,800 |
Step-by-step explanation:
1. Straight-Line Method: It distributes the depreciable cost evenly over the asset's useful life. Each year, the depreciation expense remains constant at $5,250, reducing the book value gradually until reaching the residual value.
2. Units-of-Production Method: This method allocates depreciation based on the equipment's usage. Higher hours lead to higher annual depreciation. Consequently, the asset's value decreases more rapidly with increased usage.
3. Double-Declining-Balance Method: This accelerates depreciation. The rate is double that of the straight-line method applied to the remaining book value. In the initial years, depreciation is higher, reducing the book value faster.
Method Closest to Wear and Tear: The units-of-production method closely tracks wear and tear since it allocates depreciation according to the actual usage of the equipment. This method accurately reflects the impact of operational hours on the asset's value.