pivot tables: Calculated fields among *row* items
 

Hi all,

So I'm doing calculated fields among data elements, but is there a way
to do calculated fields among row elements?

So say my pivot table looks like this my have:



Region | Data
US Sum of Potatoes
Sum of Apples
Sum of Potatoes + Apples [<-calculated field]
INTL Sum of Potatoes
Sum of Apples
Sum of Potatoes + Apples [<-calculated field]


Is there a way to easily get [US minus INTL]? I guess this is
essentially a different Grand Total summary.

Thanks much.