How to calculate percentage change automatically as you type using worksheet change event with the intersect method in VBA. Watch the video:

Here’s the complete VBA code to get the percentage difference:

Private Sub Worksheet_Change(ByVal Target As Range)
Dim lastrow As Long

lastrow = Sheets(“sheet1”).Range(“A” & Rows.Count).End(xlUp).Row

If Not Intersect(Target, Range(“C2:C” & lastrow)) Is Nothing Then

If Cells(Target.Row, 2) <> “” And Cells(Target.Row, 2) <> 0 Then
Cells(Target.Row, 4) = (Cells(Target.Row, 3) – Cells(Target.Row, 2)) / Cells(Target.Row, 2)
Cells(Target.Row, 4).NumberFormat = “0.0%”
End If

End If

End Sub