FAW-Volkswagen post level q4 belongs to which level?

* * * There are 22 grades, among which the basic salary of blue-collar workers is 1 to 14, and that of white-collar workers is 1 to 22. If blue-collar workers reach 14 or above, they need to turn to white-collar workers if they want to rise further. The basic salary of blue-collar workers is 2.34 times the highest and the lowest; The basic salary of white-collar workers is 3.37 times as high as the lowest. The difference of post salary is based on the labor difference of post evaluation, and there is no mechanical arithmetic to determine the difference of salary.