It depends on how do you copy!
If you want to have a standard column (say column B) containing a negative
copy of another column (say column A) then enter formula =-A1 in B1.
If you manually copy and paste separate cells into other cells then you need
a change event procedure but first you have to specify the target cells you
want to apply the procedure to (e.g. if target cell is in column B):
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Column = 2 Then 'column B
Target.Value = -Target.Value
End If
End Sub
Regards,
Stefi
„Clare†ezt Ãrta: