English professors make maybe 70% of the salary of an engineering professor. With benefits that's probably closer to 85%. And the cost of faculty is less than

English professors make maybe 70% of the salary of an engineering professor. With benefits that's probably closer to 85%. And the cost of faculty is less than half the cost of education. You also have administration, buildings, sports, etc. So that ends up being maybe a 7-8% difference. Plus lab equipment, but the expensive lab equipment is probably mostly paid by research, and the other stuff probably isn't very expensive on a per student basis.