diff --git a/check_php-fpm-status b/check_php-fpm-status
index 9ea1fbd6bdb08b2a0a1d4206729004262747f6ea..fe3c2e0db8f29b0cf905b21c3d9063e92a706383 100755
--- a/check_php-fpm-status
+++ b/check_php-fpm-status
@@ -158,7 +158,8 @@ typeset -i iMaxQueue=$(  _getvalue "max listen queue")
 typeset -i iSlowTotal=$( _getvalue "slow requests")
 typeset -i iSlow=$(      ph.perfdeltaspeed "fpm-slow" $iSlowTotal $sDeltaunit )
 typeset -i iMaxChilds=$( _getvalue "max children reached")
-typeset -i iSlowPercent=$iSpeed*100/$iSlow
+
+typeset -i iSlowPercent=$iSlow*100/$iSpeed
 
 
 typeset -i iWorkerRunning=$( _getWorkerOfState "Running"         | wc -l )