$answeredtime = $agi->get_variable("ANSWEREDTIME");

                $seconds = $answeredtime;
                $first   = $clientfirst;
                $second  = $clientsecond;
                $cost    = $clientrate;

                        $A = ( $seconds - $first );
                        $B = bcdiv($A, $second, 4);
                        $C = ceil( $B );
                        $D = ( $C * $second );
                        $E = ( $D + $first );
                        $F = ( $cost / '60' );
                        $total = ( $F * $E );
                $deduct = ($clienrate - $total);
connect_db();
$query1 = "update airstar set credit='$deduct' where clid='$incoming_number' ";
$query_result1 = @mysql_query($query1);