@blues in the videos I watched it seemed to be similar percentages. The people contributing to the fire in the precinct were probably 70-30 or 80-20 whit versus black. Folks from both races were openly talking about scoring free alcohol from looted liquor stores. I will note that most of the streams I watched the streamers went out of their way to not film the identies of serious looters so I have a relatively limited view of events.
Some of the more interesting looting I saw was some folks backing their car up to the broken door of a Vitamin Shoppe.