The "Planning" page is where you will see all of the planned courses you have created.
Whenever you create a new course, that course will go to the "Planning" page until you give that course a status of "Completed." Once the course's status is set to "Completed", it will get transferred off of the "Planning" page and on to the "Tracking" page. The "Tracking" page keeps track of all of the courses that you have completed.
All of the statistics on the top and the bottom of the "Planning" page include both all of the planned courses (including their grades and course attributes that you expect them to fulfill) along with the courses that you have already completed that show up on the "Tracking" page. This way, you can plan ahead and see how different courses and grades might fulfill your degree requirements.
And remember, "A goal without a plan is just a wish!"