This is on an overall grade scale of between A + through F, similar to a school report card grade system. (rootfin.com)
In round one, however, scores only changed by 4.6 points on average after the interviews, not a significant margin on the 500 - point grading scale. (wacharterschools.org)
Only credits with an equivalent grade of 2.0 or better on a 4.0 scale («C» or better on letter grade scale) will be considered. (muih.edu)