AA is the highest cost, the lable on the number of working hours of employees, which measure performance by peff brings the total number of working hours, come to think.
AA lable as the most cost The idea of the number of hours worked by employees, which peff performance. Taking into account the number of hours worked.
AA lable is high cost as the thinking from the number of working hours of employees, which Peff measure performance by the number of hours of work to think.