There is a new set of data in your My Grades page, related to homework and CPS activity. Individual HW scores you might have already noticed. But now there are two rows to each CPS session: answered and correct. I.e., how many CPS questions you answered, how many you answered correctly.
Your semester grade converts your performance on HW and CPS answered into 16 and 24 points, respectively. I have set up running subtotals for those performance numbers, as well, each with its own row in the My Grade spage, right below the blue part. This will help you figure out what your HW and CPS percentages are at any point.
P.S. The first official CPS session was L5, last Wednesday.