13. In determining the basic amount of the fine to be imposed, the Commission will take the value of the undertaking's sales of goods or services to which the infringement directly or indirectly (6) relates in the relevant geographic area within the EEA. It will normally take the sales made by the undertaking during the last full business year of its participation in the infringement (hereafter ‘value of sales’).
18. Where the geographic scope of an infringement extends beyond the EEA (e.g. worldwide cartels), the relevant sales of the undertakings within the EEA may not properly reflect the weight of each undertaking in the infringement. This may be the case in particular with worldwide market-sharing arrangements.
In such circumstances, in order to reflect both the aggregate size of the relevant sales within the EEA and the relative weight of each undertaking in the infringement, the Commission may assess the total value of the sales of goods or services to which the infringement relates in the relevant geographic area (wider than the EEA), may determine the share of the sales of each undertaking party to the infringement on that market and may apply this share to the aggregate sales within the EEA of the undertakings concerned. The result will be taken as the value of sales for the purpose of setting the basic amount of the fine.