Tabulate Professionalism automatically?

It would be awesome if there was a button that would tabulate the classes individual Professionalism scores automatically, but allow for adjustment if necessary.

Missing an assignment is worth -5 points, so it shouldn't be difficult to create some sort of option to do this automatically, right? Not that it's difficult to do basic math in your own head, but it'd save a bunch of time if we could just click a button instead.