To articulate what the other dude was saying, the GPA will always be constant in relation to the percent grade. So a 93=4.0, 92=3.9, 91.23=3.823, ..., 89=3.6, ..., 84=3.1, and so on. The only thing that might vary by school is the ‘ceiling’ and ‘floor’ of a conversion scale: i.e. which percentages correspond to a 4.0 and a 1.0. So a school that has a ceiling of 95 (as opposed to the example above where a 93 is equal to a 4.0), would have the same rate of GPA change but operate at a value .2 lower for each percentage. Meaning that a 93 would then be equal to a 3.8, and an 84 would be sub-3 at 2.9 rather than 3.1 It all depends on your school’s policy though, just ask them what their GPA conversion scale is. It’s not really a question of ‘common’ for GPA values, that’s like asking what exact numerical grade averages are most common for High school students—there are simply too many possible decimal percentages.