Percentage Query in SQL

SELECT (C.A/C.B)*100,C.EMP_GENDER FROM
(SELECT GEN.*,AALL.* FROM
(select CAST(COUNT(EMP_GENDER) AS DECIMAL) AS A,EMP_GENDER from hs_hr_employee
GROUP BY EMP_GENDER) GEN ,
(SELECT CAST(COUNT(EMP_GENDER) AS DECIMAL) AS B FROM HS_HR_EMPLOYEE) AALL) C