more variation may exist between the fair value amount recognized in the prior period financial statements and the outcome or the amount re-estimated for the purpose of the current period. This is because the measurement objective for such accounting estimates deals with perceptions about value at a point in time, which may change significantly and rapidly as the environment in which the entity operates changes. We may therefore focus the review on obtaining information that would be relevant to identifying and assessing risks of material misstatement. [Source: ISA 540.A43]