I have an unbound control in my form that calculates the subtotal for items (quantity * price = subtotal) for an order #. I'm trying to make another unbound control that calculates the entire cost of that order# (sum of subtotal = grandtotal). Is it possible to have calculations on one unbound control be based on another unbound control? I have been trying to do it based by the "name" property of the control, but doesn't seem to work. It seems that I have to create another field in my table for subtotal. Hope my question makes sense. Thanks in advance for your help.