Simple calculation problem
I am a pretty basic File maker user so sorry for the silly questions :-p
I have made a work order in file maker and there is a field to enter the invoice cost "Invoice Total" .
When I move to the list view section and it lists all my invoices and costs I would like a field at the bottom to have the calculated value of all my open invoices. "total amount" I know how to do a simple calculation "field1 + field2 + field 3= " But when in list view every field I want added is named "invoice total". Is there a calculation where you can just say add all invoice total's showing in list view?
I hope my question makes sense.