minimum order quantity

Hello All,

I have a requirement that MRP should propose a minimun order quantity and then the multiples of the standard pack. For example i have a demand of 150 peices and the minimum order quantity is 100 and standrd pack is 50, the the system should recomend us to buy only 150 ( MOQ + 1 standard pack) not 200. can you anyone suggest how to achive this. Thanks in Advance and due points will be awarded.