diff --git a/core/statsmanager.py b/core/statsmanager.py
index c8df09a..38d2e68 100644
--- a/core/statsmanager.py
+++ b/core/statsmanager.py
@@ -106,9 +106,13 @@ def update_percent_status_data(cls, group, key, new_value):
             cls.insert_new_status_data(group, key, new_value)
 
         cls.data[group][date_key] = today
-        value = cls.data[group][key]
-        value = (value + new_value) / 2
-        cls.data[group][key] = value
+        if key in cls.data[group]:
+            value = cls.data[group][key]
+            value = (value + new_value) / 2
+            cls.data[group][key] = value
+        else:
+            value = new_value
+            cls.data[group][key] = value
         cls.save_data()
         return value
 
diff --git a/core/version.py b/core/version.py
index a33b48e..5b7d096 100644
--- a/core/version.py
+++ b/core/version.py
@@ -25,4 +25,4 @@
 #  Project: [SEUSS -> Smart Ess Unit Spotmarket Switcher
 #
 
-__version__ = "0.0.174"
+__version__ = "0.0.178"