When an asset is worth a lot more than guide value and is written up to prevent reduction. It is hardly ever done as it is not always precise. The US would rather use the present price.
Th this requires writing up an asset if it is appraised at a value that surpasses guide price. The entry process is to debit the asset for brand new increased worth and credit the appraisal money. Because this can be an inaccurate assessement for money, this method is rarely used in america but can be used in companies across the world, whereas organizations in america appraise money based a secured asset's current worth.