Confused what these financial numbers mean on US-News

[BobWallace]

An unprecedented 20% of this year’s freshman class across UC is from outside California and about 30% at UCLA and UC Berkeley. Though UC officials insist that Californians are not being excluded to make room for non-residents, many parents and legislators believe that UC has admitted far too many students from outside the state and are concerned that the practice hurts in-state students’ chances for admission.

http://www.latimes.com/local/education/la-me-ln-uc-enrollment-20150303-story.html