Sub Test()
Dim LastRow As Long
With Worksheets("Sheet1")
LastRow = .Range("F" & .Rows.Count).End(xlUp).Row
.Range("F" & LastRow + 1).Formula = "=COUNT(F3:F" & LastRow & ")"
End With
End Sub
Sub Test()
Dim LastRow As Long
With Worksheets("Sheet1")
LastRow = .Range("F" & .Rows.Count).End(xlUp).Row
.Range("F" & LastRow + 1 & ":J" & LastRow + 1).Formula = "=COUNT(F3:F" & LastRow & ")"
End With
End Sub