How to calculate the social security card pension

Monthly basic pension = basic pension+personal account pension.

Among them, the basic pension = (average monthly salary of employees in the province last year+average monthly payment salary) /2* payment period * 1%= average monthly salary of employees in the province last year (1+ average monthly payment index) /2* payment period * 1%.

My average wage index = (a1/al+a2/az+...+an/an)/n.

In the formula, a.

1, a2.....an is the salary paid by the insured before retirement, which is 1 year, 2 years ... n years.

1、a2？ An refers to 1 year average salary of local employees, 2 years ..... n years before the insured retires. N is the number of years that enterprises and employees actually pay the basic old-age insurance premium.