Final answer:
Normally, unless otherwise stated, depreciation is computed using the half-year convention, which applies a half-year's depreciation in both the acquisition and disposal periods.
Step-by-step explanation:
Depreciation is normally computed on the basis of a half-year's depreciation in the period of acquisition and in the period of disposal, unless otherwise stipulated. This is commonly known as the half-year convention. Under this method, only half of the annual depreciation expense is recorded for both the first and the last years of the asset's life, regardless of when the asset was acquired or disposed within the year. This approach simplifies the calculation and assumes that assets are put into service and taken out of service midway through the fiscal year, on average.