The following data is available for Sheffield Repair Shop for 2022 : The desired profit margin is $44 per labor hour. The material losding char go is 40% of invoice cost. It is estimated that 5000 laber hours will be worked in 2022. In March 2022, Sheffield repairs a bicycle that takes two hours to repair and uses parts of $340. The bill for this repair would be $804.00 $712.00 $755.20. $668.00