Local news said they were doing approximately $21,000 per day in sales:
"Pennsylvania narcotics investigators say they've seized 170,000 doses of heroin and fentanyl from drug traffickers in Philadelphia.
Attorney General Josh Shapiro says Thursday's sting in the hard-hit Kensington neighborhood also netted crack cocaine, handguns, cash and a piece of heavy machinery used to package drugs. Eleven people were arrested and face a range of charges including corrupt organizations, conspiracy and drug trafficking."
usnews.com/news/best-states/pennsylvania/articles/2019-02-14/drug-bust-170k-doses-of-heroin-fentanyl-seized-in-philly