I'm trying to get the quantity field to be negative on all credit memos (they start with an 'R') using IIf statement, but I can't seem to get the wildcard correct. Here is what I'm trying, but it's not working.
=IIf(Fields!InvoiceNumber.Value="R%",(Fields!ShipQuantity.Value*-1),Fields!ShipQuantity.Value)
Any suggestions?