You need to make a calculate field.
Case
When Billing_Code < 20000 Then My_Amount_Field
Else ( My_Amount_Field * -1 ) /* will change the amount to a negative assuming the Amt is positive */
End AMT
You need to make a calculate field.
Case
When Billing_Code < 20000 Then My_Amount_Field
Else ( My_Amount_Field * -1 ) /* will change the amount to a negative assuming the Amt is positive */
End AMT