Which gear is Shenzhen social security deduction 22 1?

According to official website data of Shenzhen Human Resources and Social Security Bureau, the basic medical insurance in Shenzhen is divided into first, second and third grades. The third payment standard, the first payment base is the total salary of last month, and the payment ratio is 8.2%, and the individual's monthly salary is 270.8 1 yuan. The second payment base is the average monthly salary of employees in the previous year, and the payment ratio is 0.8%, and the individual's monthly salary is 196.0 1 yuan, and the third payment base is employees in the previous year.