The following data is available for Swifty Repair Shop for 2019 Repair technicians' wages 3310000 Fringe benefits 80000 Overhead 60000 Total $450000 The desired profit margin is $40 per labor hour. The material loading charge is 40% of invoice cost. It is estimated that 5000 labor hours will be worked in 2010 In March 2019, Swifty repairs a bicycle that takes two hours to repair and uses parts of $240. The bill for this repair would be O $564 $596, $500. $S40