Power BI Dax help

Hello All,

I've SQL query here:-

CREATE TABLE #Temp1 ( id smallint, app_dt date )
CREATE TABLE #Temp2 ( app_id smallint, disb_dt date, tot_amt numeric )

INSERT INTO #Temp1 VALUES ( 1, '2020-11-01' )
INSERT INTO #Temp1 VALUES ( 2, '2020-12-01' )
INSERT INTO #Temp1 VALUES ( 3, '2020-11-01' )
INSERT INTO #Temp1 VALUES ( 4, '2020-11-01' )

INSERT INTO #Temp2 VALUES ( 1, '2020-11-01', 123 )
INSERT INTO #Temp2 VALUES ( 2, '2020-11-01', 234 )
INSERT INTO #Temp2 VALUES ( 3, '2020-11-01', 587 )

SELECT	*
FROM	#Temp1

SELECT	*
FROM	#Temp2

SELECT	SUM(b.tot_amt) AS Volume
FROM	#Temp1 AS a
		LEFT OUTER JOIN #Temp2 b ON a.id = b.app_id
WHERE	YEAR(b.disb_dt) = 2020
			AND MONTH(b.disb_dt) = 11

DROP TABLE #Temp1
DROP TABLE #Temp2

How can I apply where clause filter to my #Temp2 using Dax New column/New Measure?
Where clause filter values are coming from Hierarctical Slicer visualization.

Need help, thanks in advance.

Thank You

Regards,

gk03