And ... According to the relevant public information, in addition to the basic salary, the Big Four also has a salary of 13 or 14, about 65% of the employees of the Big Four can get a salary of 13, and10 ~15% of the employees can get it. The "Big Four" usually refers to four world-famous accounting firms: PricewaterhouseCoopers (PwC), Deloitte (DTT), KPMG and Ernst & Young (EY), which are mainly engaged in auditing, taxation and financial consulting.