80 to 85 percent table 236.60 of any school's budget http://nces.ed.gov/programs/coe/indicator_cmb.asp table 236.60 National Center for Education roughly 80 percent nationwide nationwide The Condition of Education: Public School Expenditures 80 to 85 percent less than Public School Expenditures table 236.60 nationwide (Last Updated: May 2015) spent on salaries and benefits (Last Updated: May 2015) nationwide table 236.60 table 236.60 table 236.60 table 236.60 U.S. public schools http://nces.ed.gov/programs/coe/indicator_cmb.asp table 236.60 Image Source less than Image Source National Center of Education Statistics (NCES) National Center for Education Statistics Public School Expenditures http://nces.ed.gov/programs/coe/indicator_cmb.asp roughly 80 percent Public School Expenditures table 236.60 current average cost (Last Updated: May 2015) (Last Updated: May 2015) table 236.60 Public School Expenditures table 236.60 table 236.60