Changing Majors at UCLA

How easy is the process of changing majors at UCLA? I’m applying as a transfer student (I’ll be a junior when I begin, if I get accepted), and I’m applying under a major in the College of Letters and Science. What is the process like if I decide to change my major? And what if I would like to change into a major outside of the College of Letters and Science? I know it’s harder for transfer students to change majors, so it would be great to know more specific information.

0% chance to change into a major outside L&S or an impacted (*) major inside L&S.

@epicer i know this is very late but does this apply if I would want to switch from L&S into an art major? If I had built up an art portfolio/minored in art before them?