Rey Custom Electronics (RCE) sells and installs complete security, computer, audio, and video systems for homes. On newly constructed homes it provides bids using time-and-material pricing. The following budgeted cost data are available. Material Loading Charges Charges Time Technicians' wages and benefits 145,292 Parts manager's salary and benefits Office employee's salary and benefits 27,562 Other overhead Total budgeted costs 34,100 6,160 15,56341,401 $ 188,417 81,661 The company has budgeted for 5,940 hours of technician time during the coming year. It desires a 38.88 profit margin per hour of labor and an 80% profit on parts. It estimates the total invoice cost of parts and materials in 2017 will be $ 671,000