تبدیل حالت امتیاز به مطالب به حالتی مثل درصدی

    if( $rating ) $rating = round( ($rating / $vote_num), 0 );
    else $rating = 0;
    $rating = $rating * 17;

    if( $rating ) $rating = round( ($rating / $vote_num), 2 );
    else $rating = 0;
    $rating = floor($rating * 17);