diff --git a/libs/fingerprint.py b/libs/fingerprint.py
index f9c5426..7abb553 100644
--- a/libs/fingerprint.py
+++ b/libs/fingerprint.py
@@ -167,9 +167,10 @@ class DBSchema:
           diff_total += diff_num
       else:
         self.__FuzzyTable()
-    percentage = 0
+    percentage = 100
     if (diff_total > 0):
-      percentage = float(diff_total) / all_total
+      percentage = percentage - float(diff_total) / all_total
+
     return percentage
 
   #