how to continue formula in below line in vba code
Range("$M$3").Formula = Range("G3") & (",") & Range("L3")
Dim Lastrow As Long
Application.ScreenUpdating = False
Lastrow = Range("L" & Rows.Count).End(xlUp).Row
Range("M4").FormulaR1C1 = Range("G4") & (",") & Range("L4")
Range("M4").AutoFill Destination:=Range("M4:M" & Lastrow)
ActiveSheet.AutoFilterMode = False
Application.ScreenUpdating = True