Set Analysis using Advance KPI extension

[Kunal_Uppal]

Hi, 

I am trying to calculate the set analysis below using Advanced KPI extension. 

=count({<Date ={">=$(monthstart(max(Date)))<=$max(date))"}, flag={"Agent price"} >}insurance type) * unitprice 

I am able to get the value for the below: 

=count({<Date ={">=$(monthstart(max(Date)))<=$max(date))"}, flag={"Agent price"} >}insurance type)

However, when I try to multiple the above set analysis with the unitprice , it is not rendering any result.

I appreciate if anyone can help me  writing the set analysis with the unit price 

[Kunal_Uppal]

I don't have the Sales amount in the table.  I have the data on insurance level, so I would like to calculate the total sales by multiplying with unitprice.