This is a sample report Group by Customer. I'm calculating the balance value as:
Fields!Bill.Value-SUM(Fields!Paid.Value)

How to display balance Column as 0 if the value is in between -1 to 1
This is a sample report Group by Customer. I'm calculating the balance value as:
Fields!Bill.Value-SUM(Fields!Paid.Value)

How to display balance Column as 0 if the value is in between -1 to 1
Following my comment as answer since this iif statement seems to solve your problem: