Where basic pension = (average monthly salary of the province's previous year's employed workers + my indexed average monthly contribution salary)/2*contribution period*1% = average monthly salary of the province's previous year's employed workers (1 + my average contribution index)/2*contribution period*1%.
My average contribution wage index=(a1/al+a2/az+.... +an/an)/n.
In the formula, a.
1, a2.... .an for the participants before retirement 1 year, 2 years ...... .n years the amount of personal contribution salary.
1, a2?an for the participants before retirement 1 year, 2 years ..... .n years of the average salary of local employees. n is the number of years that enterprises and employees actually pay basic pension insurance premiums.