I have noteced the some problems in report variables in some ways I may not getting the right logic thinking in it but I think I'm right, like the following ex.
faced a problem in doing my trial balance in using the report variables, I have the field in my table which is for the balance and this field may can be +value or -value and I'm geting the deffrence between them in anther 2 col. for debit and created it is successfull but the problem is to sum each defrent col. while I'm putting them in 2 deffrent fields and still I'm not getting the correct result and I think I have to calc it within a program file.