number of times overpaid

1 files changed, 7 insertions, 2 deletions

diff --git a/4.N.10_Parser.php b/4.N.10_Parser.php
index fb8d42a..e08432a 100644
--- a/4.N.10_Parser.php
+++ b/4.N.10_Parser.php
@@ -65,12 +65,17 @@ for (i=0;i<=$numRecords;i++)
 		 	$whose_question[$question_id] = $student_id;
 		 			 	
 		 	
-		 	//How many correct submissions are there 
+		 	//How many correct submissions are there - 
 		 	if ($submitted_sum == $correct_sum)
 		 	{
 		 		$num_correct[$student_id]++;
 		 	}
-		 					
+		 	
+		 	//How many times does each student overpay - important for determining subraction understanding
+		 	if ($submitted_sum > $correct_sum)
+		 	{
+		 		$num_overpaid[$student_id]++;
+		 	}				
 	}
 }