definiens: means, with respect to a particular Agrecment Quarter, the quotient of ( i ) the Net Sales for the immediately preceding Agreement Quarter, divided by ( ii ) the number of Territory Invoiccd Units for such immediately preceding Agreement Quarter ; provided, however, that the Net Selling Price for the Initial Agreement Quarter shall be Sixty Eight Dollars ( $ 68.00 ): provided further that the Net Selling Priec shall be adjusted upwards for a subsequent Agreement Quarter in the event that [COMPANY] takes a WAC price increase in the immediately preceding applicable Agreement Quarter as follows ; ( x ) for a WAC price increase taken during the tirst month ofthe applicable Agreement Quarter, thc applicable Net Selling Price shall be adjusted upwards by sixty seven percent ( 67 % ) of the percentage increase in WAC, ( y ) for a WACpriee increase taken during the second month of the applicable Agreement Quarter, the applicable Net Selling Price shall be adjusted upwards by fifty percent ( 50 % ) of the percentage increase in WAC, and ( z ) for a WAC price increase takcn during the third month of the applicable Agreement Quarter, the applicable Net Selling Price shall be adjusted upwards by thirty three percent ( 33 % ) of the percentage increase in WAC