Improve regular expression

moneymgr_mobile/lib/utils/ocr_utils.dart

@@ -27,7 +27,7 @@ Future<double?> extractTotalFromBill(Uint8List imgBuff) async {
 
   // Check for highest amount on invoice
   final regexp = RegExp(
-    r'([0-9]+([ ]*(\\.|,)[ ]*[0-9]{1,2}){0,1})[ \\t\\n]*(EUR|eur|€)',
+    r'([0-9]+([ ]*(\\.|,)[ ]*[0-9]{1,2}){0,1})([ \\t\\n]*(EUR|eur|€)|E)',
     multiLine: true,
     caseSensitive: false,
   );