I know I posted this before but maybe I was not clear enough with my question. Therefore, I am posting the question again. I hope this would be clear enough.

my problem is that I would like to do a cross-tab report that calculate values from a
i all,
I am working on a report that shows monthly sales activities.
At this point, i have created a crosstab that shows sales information by month (see example below) but I want somehow to show percent increase/decrease from month to month. Can anyone point me to a tutorial or any source code to perform this action? I have been searching online for over a week and no luck yet.
thanks in advance.

Sales by month:
............................01/2006............02/2006........... 3/2006
Internet sales..........50,000.............10,000..............8,000
In-store sales............6,000.............20,000............15,000
Catalogs sales...........9,000..............1,800...............3,400



PS. I am using visual studio .net 2005