Index: lams_common/src/java/org/lamsfoundation/lams/lesson/LessonClass.java
===================================================================
RCS file: /usr/local/cvsroot/lams_common/src/java/org/lamsfoundation/lams/lesson/LessonClass.java,v
diff -u -r1.16 -r1.17
--- lams_common/src/java/org/lamsfoundation/lams/lesson/LessonClass.java	29 Nov 2006 04:02:26 -0000	1.16
+++ lams_common/src/java/org/lamsfoundation/lams/lesson/LessonClass.java	2 Dec 2006 07:17:51 -0000	1.17
@@ -163,7 +163,7 @@
     	int originalNumber = learnersGroup.getUsers().size();
    		learnersGroup.getUsers().addAll(newLearners);
    		int newNumber = learnersGroup.getUsers().size();
-   		return originalNumber - newNumber;
+   		return newNumber - originalNumber;
     }
 
     public Group getLearnersGroup() {
@@ -215,7 +215,7 @@
     	int originalNumber = staffGroup.getUsers().size();
     	staffGroup.getUsers().addAll(newStaff);
    		int newNumber = staffGroup.getUsers().size();
-   		return originalNumber - newNumber;
+   		return newNumber - originalNumber;
     }
 
     /**