Un-weighted 4 point average (college) is calculated as following

For GPA

100 = 4.0	89 = 3.0	79 = 2.0
99 = 4.0	88 = 3.0	78 = 2.0
98 = 4.0	87 = 3.0	77 = 2.0
97 = 4.0	86 = 3.0	76 = 2.0
96 = 4.0	85 = 3.0	75 = 2.0
95 = 4.0	84 = 3.0	74 = 2.0
94 = 4.0	83 = 3.0	73 = 2.0
93 = 4.0	82 = 3.0	72 = 2.0
92 = 4.0	81 = 3.0	71 = 2.0
91 = 4.0	80 = 3.0	70 = 2.0
90 = 4.0