The formula below allows me to enter a dollar amount in column H the is added to column I where a cumulative total for dollars obligated to a project is totaled.

Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Column = 8 And Target.Cells.Count = 1 Then
Target.Offset(0, 1).Value = Target.Offset(0, 1).Value + Target.Value
End If
End Sub

This works fine for the entire column what I want to do is change the code so that a range of cells is considered instead of the entire column. Like Range (H2:H150).

Any help would be greatly appreciated.