SELECT YEAR_MONTH,
       MONTH_AMT,
       (SELECT SUM(SALES_AMT)
          FROM SALES
         WHERE UPDATED_NO IS NULL
           AND STRFTIME('%Y-%m', SALES_DATE) >= '2023-01'
           AND STRFTIME('%Y-%m', SALES_DATE) <= '2023-12'
           AND STRFTIME('%Y-%m', SALES_DATE) <= YEAR_MONTH
        ) AS CUML_AMT,
       (SELECT SUM(SALES_AMT)
          FROM SALES
         WHERE UPDATED_NO IS NULL
           AND STRFTIME('%Y-%m', SALES_DATE) <= YEAR_MONTH
           AND STRFTIME('%Y-%m', SALES_DATE) >= MONTH
           AND UPDATED_NO IS NULL
        ) AS YEAR_MOVE_AMT
FROM(
SELECT STRFTIME('%Y-%m', SALES_DATE) AS YEAR_MONTH,
       SUM(SALES_AMT) AS MONTH_AMT,
       STRFTIME('%Y-%m', DATE(SALES_DATE, '-11 month')) AS MONTH
  FROM SALES
 WHERE UPDATED_NO IS NULL
   AND STRFTIME('%Y-%m', SALES_DATE) >= '2023-01'
   AND STRFTIME('%Y-%m', SALES_DATE) <= '2023-12'
 GROUP BY STRFTIME('%Y-%m', SALES_DATE)
)
WHERE YEAR_MONTH >= '2023-01'
  AND YEAR_MONTH <= '2023-12'
ORDER BY YEAR_MONTH