Sub R1C1Style()
FinalRow = cells(Rows.count, 2).End(xlUp).row
range("D4:D" & FinalRow).FormulaR1C1 = "=RC[-1]*RC[-2]"
range("F4:F" & FinalRow).FormulaR1C1 = "=IF(RC[-1],ROUND(RC[-2]*R1C2,2),0)"
range("G4:G" & FinalRow).FormulaR1C1 = "=+RC[-1]+RC[-3]"
cells(FinalRow + 1, 1).value = "Total"
cells(FinalRow + 1, 6).Formula = "=SUM(G4:G" & FinalRow & ")"
End Sub