A first-time examination of the relationship between attrition and lost revenues, The Cost of College Attrition at Four-Year Colleges & Universities looks at 1,669 four-year public, private and for-profit colleges and universities. Each time a student leaves, school revenue from tuition is lost. Collectively, these institutions of higher learning lose close to $16.5 billion annually. Publicly assisted colleges and universities averaged $13,267,214. Surveyed students gave four reasons for leaving which accounted for 84% of attrition: the college doesn’t care, poor service and treatment, the college isn’t worth it, and schedule (not being able to find courses at times that fit their needs). All 1,669 institutions are listed with attrition rates and amounts of lost revenue. Caution! Study is 269 pages long. Readers should look online for the attrition rates of colleges that interest them.