What is the meaning of the monthly contribution base

Monthly contribution base is the base for social insurance payment according to the social security department, and it is called monthly contribution base because the insurance is paid monthly. Generally speaking, the contribution base is determined according to the average value of one's salary income in the previous year. (1) If the employee's salary income is higher than 300% of the average salary of the local employees in the previous year, 300% of the average salary of the local employees in the previous year will be used as the contribution base; (2) if the employee's salary income is lower than 60% of the average salary of the local employees in the previous year, 60% of the average salary of the local employees in the previous year will be used as the contribution base; and (3) if the employee's salary is between 300%-60%, the contribution base will be declared according to the actual situation. Employee salary income can not be determined, its contribution base according to the local labor administration department announced the average salary of local employees in the previous year for the contribution wage to determine.