The following data is available for Vaughn Repair Shop for 2019: Repair technicians $400000 wages Fringe benefits 80000 Overhead Total 70000 $550000 The desired profit margin is $50 per labor hour. The material loading charge is 40% of invoice cost. It is estimated that 5000 labor hours will be worked in 2019. In March 2019, Vaughn repairs a bicycle that takes two hours to repair and uses parts of $240. The bill for this repair would be O $560. O.$656. O $610. O $638.