What are the grades of social security in Chengdu?

Chengdu social security is divided into four grades. They are:

1, 40% of the first installment shall be paid 652.34 yuan per month;

2.60% pay 865438 yuan +05.74 yuan per month for the first gear;

Pay 979. 14 yuan per month for 3.80% first gear;

Monthly payment 1 142.54 Yuan 4/ 100% first file. _