SGPA Formula

SGPA = ∑ (C_i × G_i) ∑ C_i

Where:
C_i = Credits allotted to the i^th course
G_i = Grade point obtained in the i^th course
∑C_i = Total credits registered in the semester

CGPA Formula

CGPA = ∑ (C_i × S_i) ∑ C_i

C_i = Total credits of the i^th semester
S_i = SGPA obtained in the i^th semester

Equivalent Percentage Formula

Percentage = PL + (PU − PL) × Y

Y = X − ⌊X⌋
X = SGPA or CGPA
PL = Lower percentage limit
PU = Upper percentage limit