Closed since March, casinos in Detroit see 40% revenue slide Kurt Nagl, Crain's Detroil Business · May 12, 2020 at 11:11 pm Revenue at Detroit’s three casinos is down 40 percent, or $193 million, from the same time last year after they were forced to close in mid-March because of the coronavirus pandemic. MGM Grand Detroit, MotorCity Casino Hotel and Greektown Casino-Hotel did not report revenue for April because they have been closed since March 15. Last April, they recorded $125 million in revenue. For the two weeks in March that the casinos were open, they took in $57.4 million — a 60 percent year-over-year decline. So far in 2020, the casinos have made a total of $299.2 million in revenue, compared to $492.1 million in the same period last year, according to a news release from the Michigan Gaming Control Board.