I use Crystal Reports XI and I have a problem.Can anyone help me?
In my report i have fields "depts" "claims" and i want to create column "balance" where "balance = balance - depts + claims" for each record
i have variable balance = 5000 that is some previous balance

   depts    claims    balance
   1000     500       4500
   2000     0        2500
   1500     1000      2000

But i can't do this in formula editor...
how to add variable to itself?

balance is formula field. I don't have field in table, i need to calculate this field from report