An intercompany transaction as accurately delineated may be disregarded, and if appropriate, replaced by an alternative transaction, where the arrangements made in relation to the transaction, viewed in their totality, differ from those which would have been adopted by independent enterprises behaving in a commercially rational manner in comparable circumstances, thereby preventing determination of a price that would be acceptable to both of the parties taking into account their respective perspectives and the options realistically available to each of them at the time of entering into the transaction. It is also relevant to consider whether the MNE group as a whole is left worse off on a pre-tax basis since this may be an indicator that the transaction viewed in its entirety lacks the commercial rationality.