Bill,

It would help if you would post how you are doing this: my method would
involve the worksheet's change event:

Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Cells.Count 1 Then Exit Sub
If Target.Column = 1 Then
Target(1, 2).Value = Target(1, 2).Value + Target.Value
End If
End Sub

HTH,
Bernie
MS Excel MVP

"Bill" wrote in message
...
I can make A1 accumulate to B1, no problem. My question is how do you get
additional cell to accumulate without changing the values in the previous
cells. I would like this to work for multi rows : Example- A1 accumulate
to
B1, A2 accumulate to B2, A3 accumulate to B3 and so on. Each row would
stand
on it's own.
--
Bill