Not getting sum of rows from table

$query="SELECT Distinct company, car_moto, packet FROM companies where userid='$userid' ORDER BY company, car_moto, packet";
$result=mysql_query($query);
$num=mysql_numrows($result);

$i=0;
while ($i < $num) {
  $f0=mysql_result($result,$i,"company");
  $f1=mysql_result($result,$i,"car_moto");
  $f2=mysql_result($result,$i,"packet");

  $sql_1 = "SELECT SUM(price_protect) as partpaid1 FROM companies where company='$f0' and car_moto='$f1' and packet='$f2' and userid='$userid'";
  $sql_2 = "SELECT SUM(clear_protect) as partpaid2 FROM companies where company='$f0' and car_moto='$f1' and packet='$f2' and userid='$userid'";
  $result_1=mysql_query($sql_1) or die('Error query failed');
  $result_2=mysql_query($sql_2) or die('Error query failed');

  while ($row_1 = mysql_fetch_array($result_1)) {
    $invoicepartpaid1 = $row_1['partpaid1'];
  }
  while ($row_2 = mysql_fetch_array($result_2)) {
    $invoicepartpaid2 = $row_2['partpaid2'];
  }
  echo "<tr><td align='center'><span>$f0</span></td><td align='center'><span>$f1</span></td><td align='center'>< span>$f2</span></td><td align='center'><span>$invoicepartpaid1& lt;/span></td><td align='center'><span>$invoicepartpaid2</span>< /td></tr>";

  $i++;

}

<span>$invoicepartpaid1</span>

<span>$invoicepartpaid2</span>