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