how many rows appeared when you ran the query?
the results should have been something like (say it gave 2 rows):
[Item Number], Dimensions, Zero, One, Two, Three, Four, TotalItemValue, GrandTotal
1234,abc,100,200,300,400,1000,2001
1235,def,101,201,301,401,1001,2001
where the grandtotal is the...