I just ran the enrich layer tool in ArcGIS Online for the DC area by adding the 2016 Black/African American Non-Hispanic Population (Esri) data, as well as others from the race options.
The problem is that the results appear to be percentages, not population counts. The highest black census tract has a value of 37, which could not be count data.
Is this an error? Is there any way to get the population count data, not percentages? I didn't see the option when selecting the data.