Chengde City, Hebei Province, a month to pay 779 yuan social security is what file?

Chengde City, Hebei Province, pays 779 yuan of social security every month. Social security is divided into four grades: the lowest grade (40%), the first grade (60%), the second grade (80%) and the third grade (100%). The monthly payment for each grade is as follows: 1. The minimum (40%) pension payment consists of pension, basic medical assistance for serious illness and maternity insurance, with a total monthly payment of 548.57 yuan. 2. The monthly payment for the first installment (60%) is 692.37 yuan. 3. The monthly payment for the second installment (80%) is 835.97 yuan. 4. The monthly payment for the third gear (100%) is 979.77 yuan.