1,不带小数点的百分比

SELECT CONCAT(ROUND(errorTable.errorCount / totalTable.totalCount * 100),‘‘,‘%‘) FROM
        (SELECT COUNT(*) AS totalCount FROM dw_audit WHERE data_level = #{dataLevel} AND task_type = #{taskType}) AS totalTable,
        (SELECT COUNT(*) AS errorCount FROM dw_audit WHERE data_level = #{dataLevel} AND task_type = #{taskType} AND task_state = #{taskState}) AS errorTable

2,带小数点的百分比

CONCAT(ROUND(a.cnt / b.cntSum * 100, 2),‘‘,‘%‘)