definiens: for such period shall mean the Initial EBIT Amount for such period, or such ot her amount as shall have been agreed to by Purchaser an d Seller following a timely notice of objection as contemplated under this Section 2.6 ( b ), or such ot her amount as determined by the Neutral Accountant and ( ii ) the for s uch period shall mean : ( x ) the date that is 31 days after the delivery of Purchaser ’s calculation of the Initial EBIT Amount for such period to Seller, ( y ) such ear lier date on which Seller delivers an irrevocable notice to Purc haser in writing that it agrees with Purchaser ’s ca lculation of such Initial EBIT Amount, or ( z ) if Seller timely o bjects to such Initial EBIT Amount, such date on wh ich the Final EBIT Amount in respect thereof is otherwise d etermined