12 month rolling avg for amount in webi report???

Hi All,

I a report where i need to display the rolling 12 month avg of the revenue for the Current month and Current year.

In my report I have objects like Year and Month dimension objects and Revenue as a measure.

I googled but didnt find the expected blog or discussion as per my requirement.

My requirement is If I excute the webi report say April 2013 then My report has to display rolling revenue from May 2012 to April 2013.

I wrote a formula as mentioned below.

=NoFilter((RunningSum([Aggregate Data].[FY Act/Fcst])-RunningSum(Previous([Aggregate Data].[FY Act/Fcst];12)))/12)

But the required output is the one we are look for. It is giving me for all the months.

Regards

Ram