diff --git a/EliteBGS/MinusFortyFiveConverter.cs b/EliteBGS/MinusFortyFiveConverter.cs
index d7fdb14..6ae4463 100644
--- a/EliteBGS/MinusFortyFiveConverter.cs
+++ b/EliteBGS/MinusFortyFiveConverter.cs
@@ -8,7 +8,7 @@ public class MinusFortyFiveConverter : IValueConverter {
     /// <inheritdoc/>
     public object Convert(
         object value, Type targetType, object parameter, CultureInfo culture) {
-        return (double)value - 55;
+        return (double)value - 65;
     }
 
     /// <inheritdoc/>