SELECT
    PREF.PF_CODE AS CODE,
    PREF.PF_NAME AS NAME,
    ROUND((CAST(DRINK.AMT AS DOUBLE) / CAST(POP.AMT AS DOUBLE))*100, 2) AS PERCENTAGE
FROM
    PREFECTURE PREF
INNER JOIN
    (
        SELECT  
            PF_CODE,
            SUM(AMT) AS AMT
        FROM
            DRINK_HABITS
        WHERE
            GENDER_CODE IN ('2','3')
        AND
            CATEGORY_CODE = '110'
        GROUP BY
        PF_CODE
    ) POP
ON PREF.PF_CODE = POP.PF_CODE
INNER JOIN
	(
		SELECT  
            PF_CODE,
            SUM(AMT) AS AMT
        FROM
            DRINK_HABITS
        WHERE
            GENDER_CODE IN ('2','3')
        AND
            CATEGORY_CODE = '120'
        GROUP BY
        PF_CODE
    ) DRINK
ON PREF.PF_CODE = DRINK.PF_CODE
GROUP BY
    PREF.PF_CODE,
    PREF.PF_NAME
ORDER BY
    ROUND((CAST(DRINK.AMT AS DOUBLE) / CAST(POP.AMT AS DOUBLE))*100, 2) desc,
    PREF.PF_CODE desc
;