3%.

According to the official website of the People's Daily, starting from June 13, 2018, the central adjustment fund will be composed of funds released from the pension insurance funds of each province. The amount will be calculated based on 90% of the average salary of employees in each province and the number of people who should be insured.

The base number and the upward adjustment ratio start from 3%, so the central adjustment bonus ratio of the basic pension insurance for enterprise employees is 3%.