I have a question on accounting for subsidiaries.
Company B is a partially owned subsidiary of company A. It has been fully consolidated for a couple of years.

Is it possible under any circumstances in some future period after the periods the assets of company`s B were accounted at fair value, company B assets to be accounted at initial purchasing price which is smaller than the previous fair value and no goodwill, positive nor negative is accounted.
Thanks

if in subsequent periods the value is changed it is referred to as at valuation and although purchase price might be used at a reference the valuation should be independent. However values should not be swithced back and forth between at valuation and at cost as this produces distrotions in the accounts and would require adjustments of all priod period information