According to Shoppertrak, BF sales were down 5.6%, while Thanksgiving day sales were up 27.3%, an overall decline in combined Thanksgiving and BF Sales of half a percent (12.29b vs 12.35b). Amazon's reporting a surge in online sales of ~24% on BF.
http://www.shoppertrak.com/media/press-release/black-weekend-trafficsales-update/
https://recode.net/2014/11/29/strong-black-friday-online-sales-give-hope-for-big-holiday-numbers/