diff --git a/include/class/anc_key.class.php b/include/class/anc_key.class.php
index f553a53f2..ed06eb074 100644
--- a/include/class/anc_key.class.php
+++ b/include/class/anc_key.class.php
@@ -324,6 +324,7 @@ class Anc_Key
         {
             $val[$number][$i]=bcmul($p_amount,$a_amount[$i]['ke_percent']);
             $val[$number][$i]=bcdiv($val[$number][$i],100);
+            $val[$number][$i]=abs($val[$number][$i]);
         }
         $array['val']=$val;