@websensation That would be an increase from Class of 2021, which was 81.6% according to the 2017-18 CDS.
I suspect that they might get a higher yield from SCEA, so their overall yield would go up if they accepted a greater percentage of the class SCEA compared to last year.
(At least Stanford published its Class of 2021, 2017-18 CDS. Harvard has not done so and has yet to give any indication of New SAT scores. Not that we’d be surprised at the actual ranges, but still, it’s annoying and mildly suspicious.)