SELECT
  p.PF_CODE AS 都道府県コード,
  p.PF_NAME AS 都道府県名,
  po15.TOTAL_AMT AS 総人口2015年,
  po20.TOTAL_AMT AS 総人口2020年,
  round(
    cast(po20.TOTAL_AMT * 100 AS real) / cast(po15.TOTAL_AMT AS real)
  ) AS 人口増加率
FROM
  PREFECTURE AS p
  INNER JOIN POPU_TRANSITION AS po15 ON p.PF_CODE = po15.PF_CODE
  AND po15.SURVEY_YEAR = 2015
  INNER JOIN POPU_TRANSITION AS po20 ON p.PF_CODE = po20.PF_CODE
  AND po20.SURVEY_YEAR = 2020
WHERE
  po20.TOTAL_AMT * 100 / po15.TOTAL_AMT >= 100
ORDER BY
  人口増加率 DESC,
  都道府県コード ASC