What must be calculated to determine the tax effects of capital gain/loss?

To determine the tax effects of capital gain or loss, it is necessary to focus on the difference between the salvage value and the book value of an asset after depreciation. When an asset is sold, the capital gain or loss is calculated as the difference between the selling price (or salvage value) and the asset's adjusted basis, which is typically its book value after depreciation has been accounted for.

The book value decreases over time due to depreciation, and understanding this adjustment is crucial. If the salvage value exceeds the book value, a capital gain is realized, which can lead to tax liabilities. Conversely, if the book value is higher than the salvage value, a capital loss is incurred, which may provide tax benefits. This direct relationship between salvage value and depreciation parameters is essential for accurately calculating the associated tax outcomes from transactions involving capital assets.

In contrast, the other options do not directly pertain to assessing capital gains or losses in the context of their tax implications, making them less relevant for this determination.