new file mode 100644
--- /dev/null
+++ b/Sales/Program.cs
@@ -0,0 +1,32 @@
+/**
+ * Program.cs
+ * 
+ * @author       Markus Bröker<broeker.markus@googlemail.com>
+ * @copyright    Copyright(C) 2017 4Customers UG
+ * 
+ */
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+using static Sales.Payment;
+
+namespace Sales
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            Console.OutputEncoding = Encoding.Default;
+
+            Program p = new Program();
+
+            Invoice invoice = new Sales.Invoice(599.99, PaymentType.NOW);
+            Console.WriteLine("Die Endsumme beträgt {0:C}", invoice.getFinalResult());
+
+            Console.ReadKey();
+        }
+    }
+}