Proration. If a Participant’s move between two or more incentive-eligible positions during the Performance Period impacts Participant classification for purposes of Section 4.1, then a proration may be applied to determine the amount due to such Participant pursuant to Article 4 hereof. To the extent it applies, such proration shall be determined in the discretion of the Administrator, and shall be based on relevant factors, which may include, but shall not be limited to # the relative time spent by such Participant working at each level, and # the extent to which corporate or an education group was charged for the services of such Participant. Unless otherwise determined by the Administrator, such proration will be based on whole months (rather than a day-by-day basis), and for purposes of such proration, actions taken prior to the fifteenth day of any month will be deemed to have happened on the first day of that month, while action taken on or after the fifteenth day of any month will be deemed to have happened on the first day of the following month.