228Although parallels may no doubt be drawn with respect, in particular, to the application of the case-law on certain general principles in the field of competition law, the Commission cannot be criticised for not having followed any particular method set out in the former Guidelines or the new Guidelines when setting the amount of the fine in the present case. The framework of its analysis must be that set out in Article 14(3) of Regulation No 4064/89, which provides that, in setting the amount of a fine, regard is to be had to the nature and gravity of the infringement. Indeed, in the case of that provision, the Commission has not adopted guidelines setting out the method of calculation which it must follow when setting fines under that provision. However, it is required to reveal clearly and unequivocally in the contested decision the elements which it took into account in setting the amount of the fine.