PHP+MS sql คำนวนแล้วได้เป็นจำนวนเต็ม ช่วยหน่อยครับผม

$sumTT = "select Sum(SuryoW) as Total,sum(SuryoG) as FG,sum(SuryoB)as NG, sum(BadRate)as 
	 percentNG from groupng a,at007 b Where a.LotNo = b.LotNo and a.dateLot
	 between '$stDate' and '$toDate'";
	 $exsum = odbc_exec($con,$sumTT);
	 while($exss = odbc_fetch_array($exsum))
	 {
	 	$sumTotal = number_format($exss[Total],2);
		$sumFG = number_format($exss[FG],2);
		$sumNG = number_format($exss[NG],2);
		$sumPercentNG = ($sumNG * 100) / $sumTotal;
	 }