@dodosol the admit rate for domestic students is not 14.5%. Of the enrolled students in the class of 2020 13% are international. This means about 324 international students and 2167 domestic. Assume the yield rate of domestic and internationals was around the same as the overall, 68%. (I don’t see why it wouldn’t be around the same) 7,165 international students applied. So 31,753 domestic students applied.
So you have 2167/0.68 = 3187 domestic students accepted
Domestic acceptance rate = 3187/31753 = 10%
The international acceptance rate was 6.6%
This year both will be lower due to the higher number of both international and domestic apps and also because yield will probably be at least around the same, in my opinion probably even a bit higher.
Also when they announced the number of apps in January, the figure is almost always lower than the final figure announced in March by 200 or so apps. So penn probably got around 40,500+ apps.