$jml=$_POST['barang'];
	$S1=1;
	$S2=1;
	$S3=1;
	$S4=1;
	$JP1=100;
	$JP2=40;
	$JP3=12;
	$JP4=1;

	if($jml>=1){
	for($jml;$jml>=1;$jml--){
		if($jml>=$JP1){
			$jml=$jml%$JP1;
			while($jml>=$JP1){
				$S1=$S1+1;
				}
			echo "$S1 x $JP1, sisanya $jml <br>";
			}
		if($jml>=$JP2 && $jml<$JP1){
			$jml=$jml%$JP2;
			echo "$S2 x $JP2, sisanya $jml <br>";
			}
		if($jml>=$JP3 && $jml<$JP2){
			$jml=$jml%$JP3;
			echo "$S3 x $JP3, sisanya $jml <br>";
			}
		if($jml>=$JP4 && $jml<$JP3){
			$jml=$jml%$JP4;
			echo "$S4 x $JP4, sisanya $jml <br>";
			}
		}
		}
	}