ALBANY – A formula used by General Motors to determine if dealers are selling enough GM vehicles in local franchise areas violates New York law, the state Court of Appeals determined Tuesday.

The 5-1 court held in Beck Chevrolet v. General Motors, 48, that the GM sales standards violate the Franchised Motor Vehicle Dealer Act, a 2008 statute designed to prohibit abusive business practices by auto manufacturers against their local franchisees.