SELECT 
PF_CODE as CODE,
PF_NAME as NAME,
round(100.0 * SUM(CASE WHEN CATEGORY_CODE = '120' THEN AMT ELSE 0 END) / SUM(AMT), 2) as PERCENTAGE

FROM DRINK_HABITS
JOIN PREFECTURE USING(PF_CODE)
WHERE
 GENDER_CODE IN ('2', '3')
GROUP BY PF_CODE
ORDER BY PERCENTAGE DESC, PF_CODE DESC 
;