Hi, I have an inventory list that I want to update the  "On-Hand" field, keep
the running total, from an update entry into the  "this shipment" field for
each inventory item.  I will not be adding lines, just updating the "this
shipment" cell for each product.  I want it to look like this:

                     On Hand      This Shipment     Running Total
Product #1           5                       3                      8
Product #2           10                    -5                      5
Product #3           20                     10                    30

Then, when my next shipment comes in i want to key in the "this shipment"
and the Running Total field updates.   All I can think of is a "circular
formula" and that doesn't work.
Thanks !!!