diff --git a/inc/power.inc.sh b/inc/power.inc.sh
index 84b3240f..fef934b5 100644
--- a/inc/power.inc.sh
+++ b/inc/power.inc.sh
@@ -148,8 +148,8 @@ CHECKPOWER(){
 			AC_WATT=$(echo "${AC_INFO}" | grep '"19":' | cut -d' ' -f 4 | sed 's/,//g')
 			AC_WATT=$(ROUND_NUMBER $(echo "scale=3; ${AC_WATT}/10" | bc -l) 2)
 			
-			SVRRM_AMP=$(expr ${SVRRM_AMP} + ${AC_AMP})
-			SVRRM_WATT=$(expr ${SVRRM_WATT} + ${AC_WATT})
+			SVRRM_AMP=$(echo "scale=2; ${SVRRM_AMP}+${AC_AMP}" | bc -l)
+			SVRRM_WATT=$(echo "scale=2; ${SVRRM_WATT}+${AC_WATT}" | bc -l)
 		# fi
 		#
 		# if [ "$(CHECK_HOST ${PW_APCPDU_IP})" != "false" ]; then