What is cumulative GPA?
Cumulative Grade Point Average (GPA) refers to the overall GPA, which includes dividing the number of quality points earned in all courses attempted by the total degree-credit hours in all attempted courses.
How is it different from term or semester GPA?
Your semester / term GPA is your Grade Point Average for that one term or semester. Your cumulative GPA is you grade point average for all attempted courses in the program.
How cumulative GPA is calculated?
Basically you have to add up all subjects taken so far in every semester and take the weighted average of each semester.