Depends on the ethnic group. The cushytics such as the oromo, Somalis and afar all have prehistoric eurasion admixture at about 30-40 percent(more than 12000 years ago) while Semitic groups such as the habeshas can have up to 60 percent eurasion and west asian admixture(4000 years ago)
Habesh
We are talking averages.
There are people who identify as AA that are only 30 percent African.