LOS G requires us to:
describe how the choice of amortization method and assumptions concerning useful life and residual value affect amortization expense, financial statements, and ratios.
We have discussed how intangible assets are amortized in this section ‘Intangible Assets‘.
The impact of the choice of method for amortization on the amount of amortization and the value of the asset is the same as that of choice of method of depreciation, as discussed here.