How Can We Help? Search < Back You are here: KB Home Policies Academic Policies 1006.1: Grading Scale: High School Print Created OnJanuary 26, 2019 Last Updated OnApril 11, 2019 bydmorgan High School Programs JRTI high school programs follow the Berkeley County Grading Scale Letter Grade: A B C D F Percentage: 90 -100% 80 … Continue reading 1006.1: Grading Scale: High School