issue in the query while defining constant for calculation - snowflake-cloud-data-platform

Question

Here I defined the constants 'sell in' and 'sell out' in both sell in and sell out dataset , so I need to calculate RETAIL_MARGIN and RETAIL_MARGIN_PCT .
the formula I defined in such a way that for 'sell out' it should calculate and for 'sell in' it should represent zero value.
the issue what Iam facing in this is its not taking both the constants its calculating 'sell out' for all that should not happen
it should represent sell in and sell out
I provide sample tables and result output how it should be
SELECT
DATA_SOURCE,
CASE WHEN DATA_DOURCE='SELL OUT'
THEN
ZEROIFNULL(ROUND(SALES_VOLUME*(SO_PRICE*(1-0.18)-SI_PRICE*(1-0.18)),2))
ELSE 0 END AS RETAIL_MARGIN,
CASE WHEN DATA_SOURCE= 'SELL OUT'
THEN
ZEROIFNULL(ROUND(DIVO(SI_PRICE*(1-0.18),SO_PRICE*(1-0.18))*100,2))
ELSE 0 END AS RETAIL_MARGIN_PCT
FROM (
SELECT
SOLD_TO,
EAN,
DATA_SOURCE,
ROUND(DIV0(SUM(SALES_VALUE), SUM(SALES_VOLUME)),2) AS SO_PRICE,
ROUND(DIV0(SUM(SI_SALES_VALUE), SUM(SI_SALES_VOLUME)),2) AS SI_PRICE
FROM (
SELECT
A3SOLD_TO,
A3.EAN,
ROUND(DIV0(COALESCE(A3.SALES_VALUE,0),3),2) AS SO_SALES_VALUE,
ROUND(DIV0(COALESCE(A3.SALES_VOLUME,0),3),2) AS SO_SALES_VOLUME,
ROUND(DIV0(ZEROIFNULL( A4.SI_SALES_VALUE),3),2) AS SI_SALES_VALUE,
ROUND(DIV0(ZEROIFNULL( A4.SI_SALES_VOLUME),3),2) AS SI_SALES_VOLUME
FROM (
SELECT
A1.SOLD_TO,
A2.EAN,
A1.DATA_SOURCE,
ROUND(ZEROIFNULL(SUM(A1.SALES_VALUE)),2) AS SALES_VALUE,
ROUND(ZEROIFNULL(SUM(A1.SALES_VOLUME)),2) AS SALES_VALUE
FROM (
SELECT
SOLD_TO,
PRODUCT_CD,
MAX(CALDAY) AS MAX_DATE,
MAX(CALDAY)-90 AS MIN_DATE,
FROM RGM_SALES_GBL.INT_TXN.SELLOUT
WHERE SALE_ORG = '7140'
AND PRODUCT_CD IS NOT NULL
GROUP BY 1,2
)A5
JOIN (
SELECT
SOLD_TO,
PRODUCT_CD,
CALDAY,
'SELL OUT' AS DATA_SOURCE,
ROUND(COALESCE(SUM(SALESVALUE),0),2) AS SALES_VALUE,
ROUND(COALESCE(SUM(SALESCASE),0),2) AS SALES_VOLUME,
FROM RGM_SALES_GBL.INT_TXN.SELLOUT
WHERE SALE_ORG='7140'
AND PRODUCT_CD IS NOT NULL
GROUP BY 1,2,3,4
)AS A1
ON A5.SOLD_TO = A1.SOLD_TO
AND A1.PRODUCT_CD=A5.PRODUCT_CD
AND A1.CALDAY BETWEEN A5.MIN_DATE AND A5.MAX_DATE
INNER JOIN (
SELECT DISTINCT
EAN,
PRODUCT_CD
FROM RGM_SALES_GBL.INT_MD.DIM_PRODUCT
WHERE SALES ORG='7140'
AND EAN != ' '
AND PRODUCT_CD IS NOT NULL
AND BASE_UOM = 'CS'
) AS A2
ON A1.PRODUCT_CD = A2.PRODUCT_CD
GROUP BY 1,2
) AS A3
LEFT JOIN (
SELECT
SOLD_TO,
EAN,
MAX(CALDAY) AS MAX_DATE,
MAX(CALDAY)-90 AS MIN_DATE,
FROM RGM_SALES_GBL.INT_TXN.SELLIN
WHERE SALES_ORG='7140'
AND COUNTRY_CD= '4025'
AND PRODUCT_CD IS NOT NULL
GROUP BY 1,2
)A6
(
SELECT
SOLD_TO,
EAN,
CALDAY,
'SELL IN' AS DATA_SOURCE,
ROUND(ZEROIFNULL(SUM(NET_INV_VALUE_IN_LC)),2) AS SI_SALES_VALUE,
ROUND(ZEROIFNULL(SUM(SALESCASES)),2) AS SI_SALES_VOLUME
FROM RGM_SALES_GBL.INT_TXN.SELLIN
WHERE SOLD_TO NOT IN (
SELECT DISTINCT
SOLD_TO FROM
FROM RGM_SALES_GBL.INT_TXN.SELLOUT
WHERE SALE_ORG='7140'
AND PRODUCT_CD IS NOT NULL
)
AND SALES_ORG = '7140'
AND COUNTRY_CD = '4025'
GROUP BY 1,2,3,4
)A4
ON A4.SOLD_TO = A6.SOLD_TO
AND A4.EAN = A6.EAN
AND A4.CALDAY BETWEEN A6.MIN_DATE AND A6.MAX_DATE
ON A3.SOLD_TO = A4.SOLD_TO
AND A3.EAN=A4.EAN
)
GROUP BY 1,2
)
CREATE TABLE RGM_SALES_GBL.INT_TXN.SELLOUT
(SOLD_TO INT,
EAN INT ,
PRODUCT_CD INT,
CALDAY DATE
SALESVALUE INT,
SALESCASE INT,
SALE_ORG INT,)
VALUES(123,10001,101,5/1/2021,76,35,'7140),
(123,10002,102,5/20/2021,21,15,'7140),
(124,10003,103,6/15/2021,45,14,'7140),
(123,10004,101,6/02/2021,76,43,'7140)
CREATE TABLE RGM_SALES_GBL.INT_TXN.SELLIN
(SOLD_TO INT,
EAN INT ,
CALDAY DATE
NET_INV_VALUE_IN_LC INT,
SALESCASES INT,
SALES_ORG INT,
COUNTRY_CD INT)
VALUES(201,10001,5/1/2021,15,30,'7140','4025'),
(203,10002,5/20/2021,43,49,'7140','4025'),
(204,10003,6/15/2021,38,15,'7140','4025'),
(205,10005,6/02/2021,61,56,'7140','4025')
CREATE TABLE RGM_SALES_GBL.INT_MD.DIM_PRODUCT
(EAN INT,
PRODUCT_CD INT,
BASE_UOM STRING)
VALUES(10001,1001,'CS'),(10002,103,'CS'),(10004,104,'CS')
DATA_SOURCE
RETAIL_MARGIN
RETAIL_MARGIN_PCT
SELL OUT
76
15
SELL OUT
98
13.5
SELL IN
0
0
SELL IN
0
0