diff --git a/dram/resources/scripts/metrics.py b/dram/resources/scripts/metrics.py
index 8f448db1..dfcf491a 100644
--- a/dram/resources/scripts/metrics.py
+++ b/dram/resources/scripts/metrics.py
@@ -60,14 +60,14 @@ def average_response_latency_in_ns(connection):
    return round(result[0],1)
 
 @metric
-def memory_utilisation(connection):
+def memory_utilisation_percent(connection):
    cursor = connection.cursor()
    cursor.execute(""" SELECT sum(DataStrobeEnd - DataStrobeBegin) FROM transactions """)
    active = cursor.fetchone()
    cursor = connection.cursor()
    cursor.execute(""" SELECT max(DataStrobeEnd) FROM Transactions """)
    total = cursor.fetchone()
-   return str(active[0]/total[0]*100)+"%"
+   return (active[0]/total[0])*100
 
 
 def refreshMissDecision(connection,calculatedMetrics):