There is something interesting going on here. I crunched the numbers further and it looks like every minority group is overstated in the Admission numbers, compared to the Enrollment report. The only group that is understated are Whites by just over 20% compared to the Enrollment report
Some or all of following may be happening
Some multi-racial Students are declaring themselves as belonging to an URM group exclusively at the time of applying to gain an edge, but once they get in, they start identifying as Multi-racial, thus bringing their numbers down in the enrollment reports
Multi-racial Students with White and Asian ancestry are not identifying themselves as Whites during admission, but once they get admitted, they are identifying themselves as White.
or maybe the University is overstating its diversity numbers on the website, but accurately reporting them to IPEDS.