Thanks guys, here is the SQL
SELECT tblParts.PartDescription, tblParts.PartNumber, tblParts.Price, tblParts.Drawer, tblParts.Compartment, Sum(tblUsedRecd.Received) AS SumOfReceived, Sum(tblUsedRecd.Used) AS SumOfUsed, [SumOfReceived]-[SumOfUsed] AS Expr1, tblParts.[Do Not Re-order]...