Oaks company maintains a cafeteria for its employees. for june, variable food costs were budgeted at $48 per employee, based on a budgeted level of 1,000 employees in operating departments. during the month, an average of 1,100 employees worked in operating departments. the cafeteria's total food costs for the month came to $57,750. how much food cost should be charged to the operating departments at the end of the month for performance evaluation purposes?