GPA calculator

[LanaBanana]

Hey guys, I was looking at my grades this morning and trying to figure out what my GPA will be after the rest of my grades were posted. Found this website that calculates GPA for you. It's pretty cool! After figuring this semesters, I put in the 3 remaining classes I have left and played around with what would happen if I got an A or B in those classes. Let's you know where you stand!

http://www.southtexascollege.edu/develop/retention/gpa_calualating.html

By the way, can anybody tell me the difference between a retention GPA and the cummulative? On my unofficial transcript I view on the internet, each semester it shows my semester GPA, school GPA, and retention GPA and then at the very end of the transcript it lists the Cummulative. Just curious.