select
        YEAR_MONTH,
        MONTH_AMT,
        CUML_AMT,
        MONTH_AMT+COALESCE(sum(CUML_AMT) over(order by YEAR_MONTH ROWS between 11 PRECEDING and 1 PRECEDING),0) as YEAR_MOVE_AMT
from
(
    select
        YEAR_MONTH,
        MONTH_AMT,
        sum(MONTH_AMT) over(order by YEAR_MONTH ROWS UNBOUNDED PRECEDING) as CUML_AMT
    from
    (
        select
            strftime("%Y-%m",SALES_DATE) as YEAR_MONTH,
            sum(SALES_AMT) as MONTH_AMT
        from SALES
        where
            UPDATED_NO is null
        group by
            YEAR_MONTH
    )
)
where
    YEAR_MONTH between '2023-01' and '2023-12'
order by
    YEAR_MONTH
;