Horizon Univ is first with -62.8%.

Incidentally, both are in a large city.

beat Haskell Indian Nations Univ (-56%), Columbia College (-53.8%), Daniel Webster College (-47.3%), and Baptist Bible College (-43.9%), and others, ending with Berea College (2,398%).

561 out of the other 3,121 colleges were ruled out due to missing, unknown, or not-applicable values for tuition & fees increase over three years, e.g., UC San Francisco.

1. The tuition & fees increase over the last three years refers to the 2009-10 and 2012-13 periods from the Institutional Characteristics Data File 2012-2013 (Provisional Release) as reported by the National Center for Education Statistics (http://nces.ed.gov/ipeds).
   

Colorado Heights Univ is in Denver, CO, is private and nonprofit, degree-granting, more than 50% Black, Hispanic, Asian, American Indian, or Alaska Native, offers on-campus housing, has its top major in business, is on the semester system, its top Masters major is business administration and management, and enrolls fewer than 1,000 students.

• in-state undergrad tuition & fees ($5,166)
• out-of-state undergrad tuition & fees ($5,166)
• cost of a shared room ($2,700)
• average grant aid to undergrads ($2,155)
• endowment per full-time student ($0)
• research spending ($0.0K)
• research spending per student ($0.0)
• in-state freshmen (100%)
• full-time retention rate (76%)
• minorities (52.8%)
• ratio of female full-time freshmen (47.8%)
• Hispanics (42.6%)
• foreign students (35.8%)
• undergrads who get financial aid (20%)
• undergrads who get Pell grants (20%)
• Blacks or African Americans (6.2%)
• Asians (4%)
• non-resident tuition & fees surcharge (0%)
• American Indians or Alaska Natives (0%)
• undergrads who receive student loans (0%)
• tuition & fees increase over three years (-56.2%)
• alumni who played in the National Football League (0)
• average January temperature (31.6 degrees)
• dorm capacity (165)
• first-year applicants (39)
• foreign students (63)
• members of the National Academy of Sciences (0)
• men's basketball Final Four appearances (0)
• Rhodes Scholar alumni (0)
• yearly for-credit students (176)
• on-campus yearly property crimes per thousand students (22.73)
• students per faculty member (12)
• elevation (1,652 meters)

Sources