Previous Quarter Measure Value

Hi All,

I want to calculate Difference between Previous Quarter and Previous to Previous Quarter Value of measure.

Table is cross tab.

Created a Variable to get Previous Quarter value first, but unable to get desired value.

=RelativeValue([Assets Value ($)];([Fiscal Quarter - Key]);-1) Where ([Fiscal Quarter - Key] = Max([Fiscal Quarter - Key])

Can anyone correct me.

Regards,

Vijay