How to calculate the base of paying social security?

The base of social security payment is basically my salary income in the previous year. According to the query method, the monthly average of the total wage income of employees in the previous year is the monthly payment base of this year, in which: the new employees in this unit take the full-term wage income of the employee's starting month as the payment base; The insured unit takes the sum of the monthly payment bases of all the insured employees of the unit as the monthly payment base of the unit. Verification of employee's individual contribution base: the insured employee's monthly average salary (total salary of last year/12 months) is taken as the monthly social insurance contribution base of this year. If the number of months of the insured employees' salary payment in the previous year is less than 12 months, the payment base of this year will be calculated on average according to the actual payment months. This year, the new employees of the insured units are approved by the total starting monthly salary, and the individual monthly payment base of the year is approved. Due to special circumstances, it is impossible to determine the total annual salary, with the average monthly salary of employees in this city as the base of payment. The insured unit declares the payment base for its employees, and the following part of the value yuan is rounded to yuan. Social insurance is a social and economic system that provides income or compensation for those who lose their ability to work, are temporarily unemployed or suffer losses due to health reasons. Social security payment methods, the payment units audited and collected have the following payment methods: opening a payment account in the bank, and the competent local tax authorities deduct the money in real time through ETS according to the declared data. Pay with UnionPay card at the front desk of the competent local tax authority; Issue a general tax payment letter at the front desk of the competent local tax authorities and pay it in cash or by transfer at the bank. Regular fixed payment units (people) do not need to declare payment to the local tax authorities every month, as long as there is enough deposit in the account that has signed the deduction agreement to ensure that the local tax authorities automatically transfer money every month.