Revaluation vs Impairment

[archived_user]

Under IFRS, using Revaluation model: Whenever a reversal of write down occurs, the income statement is increased up to the amount of the write down to reflect the earlier carrying value and an increase above that is adjusted in the equity statement (Revaluation Surplus), whereas in impairment the reversal of write down is applicable up to the loss on impairment and value above the loss is not adjusted anywhere.
My question is how we will able to judge in case of reversal of write down, we have to adjust it according to Revaluation or Impairment?

 

[archived_user]

The question will tell I suppose. Or it may “hints” you. Just remember IFRS allow both revaluation method and reversal of prior impairment while US GAAP doesn’t.