Montezuma Inc. purchases a delivery truck for $20,000. The truck has a salvage value of $8,000 and is expected to be driven for ten years. Montezuma uses the straight-line depreciation method. Calculate the annual depreciation expense. After five years of recording depreciation, Montezuma determines that the delivery truck will be useful for another five years (ten years in total, as originally expected) and that the salvage value will increase to $10,000. Determine the depreciation expense for the final five years of the asset’s life, and create the journal entry for years 6–10 (the entry will be the same for each of the five years).