Grading type is the grade and corresponding range of marks that a teacher can award when marking a student’s assessment or exam answer sheet.
The grading system are needed for the report generation for the examination conducted.Here GPA(Grade Point Average), CWA(Course Weighted Average), CCE (only for institutes following CBSE,India format) and ICSE (for institutes follow ICSE, India) are the grading formats.Bottom of the general setting's page there is an option to change the grading system.
In the (Marks,Grade,and Grade Point )field, enter the minimum percentage score and grade required for this grading type.