ช่วยดู code ให้หน่อยครับ ติดอยู่นิดเดียวเองครับ แต่ไม่รู้จะใช้ วิธีไหนแก้ไข

up_price > $chk1

<? 
$chk1=$_POST[textfield];
$chk2=$_POST[textfield2];

include "../connect.php"; 
$strSQL = "SELECT nuber_new, SUM(up_price) AS up_price FROM lottery
where select_new = 'เลข3ตัว' and up_price > 0 and up_price > $chk1
GROUP by nuber_new
ORDER BY up_price DESC";
$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
?>
<table width="350" border="1" align="center" cellpadding="0" cellspacing="0">
  <tr>
    <td colspan="3" align="center" valign="middle" bgcolor="#FFFFFF"><strong>3ตัวหัว 
        <input type="submit" name="Submit" value="พิมพ์" onclick="javascript:this.style.display='none';window.print()" />
    </strong></td>
  </tr>
  <tr>
    <td width="86" align="center" valign="middle" bgcolor="#CCFFFF">ลำดับ</td>
    <td width="96" align="center" valign="middle" bgcolor="#CCFFFF">เลข</td>
    <td width="160" align="center" valign="middle" bgcolor="#CCFFFF">ราคา</td>
  </tr>
   <?
while($objResult = mysql_fetch_array($objQuery))
{
?>
  <tr>
    <td align="center" valign="middle"><?php echo ++$i; ?></td>
    <td align="center" valign="middle"><?=$objResult["nuber_new"];?></td>
    <td align="right" valign="middle"><?=$objResult["up_price"]-$chk2;?>
    &nbsp;&nbsp;</td>
  </tr>
   <?
}
?>
</table>