--- a/marking1/drumb_test4.scala	Sat Feb 02 01:21:43 2019 +0000
+++ b/marking1/drumb_test4.scala	Sat Feb 02 13:28:05 2019 +0000
@@ -1,6 +1,6 @@
 
 
 assert(get_delta(None, None) == None)
-assert(get_delta(Some(100.0), None) == None)
-assert(get_delta(None, Some(50.0)) == None)
-assert(get_delta(Some(100.0), Some(50.0)) == Some(1.0))
+assert(get_delta(Some(50.0), None) == None)
+assert(get_delta(None, Some(100.0)) == None)
+assert(get_delta(Some(50.0), Some(100.0)) == Some(1.0))