For EFC $0 students, UC NPCs tend to show a net price of $8,000 to $11,000, depending on campus. This is the expectation of the student taking federal direct loan and some work earnings. Note that FA changes to keep net price the same for on campus, off campus, snd commuter at most UCs.
The old CSU Mentor NPC tended to show net price around $5,000 for commuters, but $11,000 to $13,000 for on or off campus living, as there was no FA adjustment. But CSUs no longer have the CSU Mentor site.
Note that commuter student costs assume several thousand dollars if living and commuting costs.