append % sign in a variable

[dynamyc]

I have this php code used for a milestone wordpress shortcode :

    function rocknrolla_milestone_box_shortcode( $atts, $content = null ){

    extract( shortcode_atts(array(
        "count" => '500',       
        "title" => ''
    ), $atts) );   

    $rnr_milestone_box = '<div class="milestone-counter" data-perc="'. $count .'">';
    $rnr_milestone_box .= '<span class="milestone-count highlight">'. $count .'</span>';
    $rnr_milestone_box .= '<h6 class="milestone-details">'. $title .'</h6>';
    $rnr_milestone_box .= '</div>';

    return $rnr_milestone_box;

    }

       add_shortcode('milestone_box', 'rocknrolla_milestone_box_shortcode');

How can I append the % sign after the count variable here, after the $count variable: $rnr_milestone_box .= '<span class="milestone-count highlight">'. $count .'</span>';

[vaielab]

Simply output it like a normal text

$rnr_milestone_box .= '<span class="milestone-count highlight">'. $count .'%</span>';

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