Pivot Table calculated Dimension not applying filter of other dimensions

[#1]

I have a Pivot Table.

The column 'Year of first Revenue' is a Calculated Dimension with this formula

=IF($(=Sum({<[Fiscal Year]={$(=(vCurrentYear)-2)}>}[Sales Amount])) = 0, 'None', $(=(vCurrentYear)-2))

The result in column Year of First Revenue is not applied the filters of other dimensions, namely Product Group des, Product Sub Group Desc etc... In other words, (=Sum({<[Fiscal Year]={$(=(vCurrentYear)-2)}>}[Sales Amount]))  is the sum of all sales for 2009 for all Product Group Desc, Product Sub Group Desc etc...

I would like the value for the dimension Year of first Revenue to be the sum of Sales Amount for each individual cell in the Pivot Table.

Is there a way to implement this ?

Regards