calculate 2 columns during a date interval

[eliasayy]

hello i have 2 table:

table_a_Date	table_a_cost			table_b_Date	table_b_cost
1/2/2022	10			1/2/2022	20
1/3/2022	5			1/3/2022	4
1/4/2022	3			1/4/2022	5
1/5/2022	6			1/5/2022	1
1/6/2022	8			1/6/2022	29
1/7/2022	1			1/7/2022	34
1/8/2022	10			1/8/2022	5
1/9/2022	5			1/9/2022	1
1/10/2022	4			1/10/2022	5

i want to make a measure that finds difference as: sum(table_a[cost]) - sum(table_b[cost])

but i want to specify a specific date like i want it to calculate the difference from 1/6/2022 till 1/10/2022 and so on but the rest of the days before 1/6/2022 just gives me 0

[tamerj1 · Accepted solution]

Hi @eliasayy 
You can use 

Measure = 
SUMX (
    VALUES ( table_a[table_a_Date] ),
    CALCULATE ( 
        IF ( 
            MAX ( table_a[table_a_Date] ) >= DATE ( 2022, 1, 6 ),
            MAX ( table_a[table_a_cost] ) 
                - CALCULATE ( 
                    SUM ( table_b[table_b_cost] ), 
                    table_b[table_b_Date] = MAX ( table_a[table_a_Date] ) 
                ),
            0
        )
    )
)

[amitchandak]

@eliasayy , option one is that you can have a common date table and then you can join with the date of both tables and use date from date table in the slicer and visual

Also, refer

How to use two Date/Period slicers

https://youtu.be/WSeZr_-MiTg

[eliasayy]

i have a date slicer but my boss doesnt want a slicer he wants it immediatly in the dashboard to show so any help?