[RESOLVED] Subtract Parameter From Crystal Reports Column

Hi Everyone,

I am a total noobie when it comes to creating crystal reports so please bear with me. I have currently created a very simple report with a sub report in the detail section of the main report. I am trying to create a running total column on the subreport using a parameter that I passed to it from the main report.

--example

'Parameter from main report is @BegBalance and will change for each user.
@BegBalance = 100

'Sub report looks like the following

Activity: Debit: Credit: Balance:
Dining 25.00 0.00 75.00
Credit 0.00 5.00 80.00

--end example

Getting the Balance column to work at all is what I am struggling with. Can someone please show me how to create a formula in crystal reports to accomplish this? Any help would be appreciated.