Changyi social security payment base in 2022

I would like to ask how many grades Changyi social security payment base has in 2022? According to relevant data, in 2022, Changyi social security payment base has five grades, and official website, Changyi government, issued a social security payment announcement in March 2022. Changyi's social security payment base in 2022 has five grades, with the lowest social security payment base of 40%, the first 60%, the second 80%, the third 100% and the highest 300%.