The following data is available for Wheels 'N Spokes Repair Shop for 2019: Repair technicians' wages $360,000 Fringe benefits 80,000 Overhead 60.000 Total $500,000 The desired profit margin is $40 per labor hour. The material loading charge is 40% of invoice cost. It is estimated that 5,000 labor hours will be worked in 2019. In March 2019, Wheels 'N Spokes repairs a bicycle that takes two hours to repair and uses parts of $240. The bill for this repair would be a $625 b. $520 c. $560 d. $616