diff --git a/module/bi/model.php b/module/bi/model.php
index 6313434acf..be001d3f73 100755
--- a/module/bi/model.php
+++ b/module/bi/model.php
@@ -635,7 +635,7 @@ class biModel extends model
         $molecule    = $this->dao->query($moleculeSQL)->fetch();
         $denominator = $this->dao->query($denominatorSQL)->fetch();
 
-        $percent = $denominator->count ? round((int)$molecule->count / (int)$denominator->count, 4) : 0;
+        $percent = $denominator->count ? round((float)$molecule->count / (float)$denominator->count, 4) : 0;
 
         $series  = array(array('type' => 'liquidFill', 'data' => array($percent), 'color' => array('#2e7fff'), 'outline' => array('show' => false), 'label' => array('fontSize' => 26)));
         $tooltip = array('show' => true);