Heyy! I was confused about the same thing before! So from what I know they take our full semesters starting from the most recent. Then if you have leftover credits like 2.0 credits, they take the average of that whole year weighted at that amount of credits. I'm not sure if that makes sense. When I called ORPAS they told me that those leftover credits can't be counted by term and that they would take the average of that whole year ( for example your whole 2nd year instead of 2b term). But I would say, if you are confused about your specific circumstance, call ORPAS, they were super helpful to me!