Hello Hirama666
You can check the general & per class balance from the Student Billing > Student Balances program.
You can also check the total from fees from the Student Billing > Daily transactions program.
This program does not allow you to restrict the report per class. This is usually done for other reports using an "Advanced" link which directs to the "Find a Student" form.
Are you interested in adding such a link to the report so you can get the total from fees per class?