var table = GetCSTStackedBarChartTable(classId, subjectArea, shortNameRowFilter);
            var query = from row in table.DefaultView.ToTable().AsEnumerable()
                        where
                            row.Field<string>("ProficiencyLevel") == "Advanced" ||
                            row.Field<string>("ProficiencyLevel") == "Proficient"
                        group row by row.Field<string>("ShortName") into grouping
                        select new Object[]
                            {
                                grouping.Key,
                                grouping.Sum( count => count.Field<int>("ProfCount"))
                            };
            decimal total = query.Sum(s => Convert.ToInt32(s[1].ToString()));
            var result = query.Select(s => Decimal.Round(Convert.ToInt32(s[1]) / total, 2));

            return result;