Ok I found solution. Maybe it could be helpfull for anyone.
Here’s simple example inside the loop.
<?php
$value = get_post_meta( get_the_ID(), ‘ratings_users’, true );
$width_t2 = $value;
$width_percent = $value*10;
$style_t1 = ‘width: ‘ . $width_t2. ‘%; height:50px;clear:both;background:#333;float:left;margin:0 0 20px 0’;
?>
<div style=”<?php echo $style_t1; ?>”><span style=”color:#fff”><?php echo $width_percent?>%</span></div>
