Answer:
The answer is; I do not recommend the change of current system
Step-by-step explanation:
The productivity of one person taking orders, assembling them, and acting as cashier is higher than that of 3 people.
The time frame is the same for both systems (1 hour), productivity is illustrated below;
Cars serviced by 1 person in existing system =50/1 = 50
Cars serviced by 1 person in 3 employee system =70/3= 23.33
The system should not be changed.