60Nevertheless, the case-law of the Court of Justice also makes clear that the exercise of unlimited jurisdiction with regard to the determination of fines cannot result in discrimination between undertakings which have participated in an agreement contrary to the competition rules of EU law. If the General Court intends, in the case of one of those undertakings, to depart specifically from the method of calculation followed by the Commission, which it has not called into question, it must give reasons for doing so in its judgment (Quinn Barlo and Others v Commission, paragraph 59 above, paragraph 46).