According to National Center for Education Statistics charts, public higher education institutions overall saw increased revenues in recent years, but private colleges saw a $46 Billion loss in revenues from 2013 to 2015.
In 2016, EY suggested that as many as 805 colleges faced significant challenges due to low enrollment numbers and unsustainable finances.
https://www.linkedin.com/pulse/private-college-revenues-us-meltdown-dahn-shaulis/