MSCRM 2011: Sales Target calculation

Question

Hi All,

 I have 5 Leads,  and won it as Opportunity . in out of 5 opportunity 3 have abc brokers and remaining 2 have  def brokers.

while Calculate the sales target  actual ammount is showing all won opportunity won ammount.

 I required only related broker calculation only not  all won ammount calculation .. how can i do?

-Regards,

 Ram

 

  

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Rammohan