Calculate sales for 1st 3 months based on Current month Sales

[Bitech]

I have situation here where I have sales amount only for current month. We have a measure Var_Sales which calculates this Total_Sales amount and replaces for the whole year 

Var_Sales = calculate(sum([Total_Sales]), ( ALL('Time'[Year],'Time'[Month]))

Month	Total_Sales	Var_Sales
1	0	100000
2	0	100000
3	0	100000
4	0	100000
5	0	100000
6	0	100000
7	0	100000
8	0	100000
9	0	100000
10	0	100000
11	100000	100000
12	0	100000

I have a requirement where i need this values to only populate for 1st three months(quarter) in the measure itself.

I tried below dax but getting the values to 0

Var_Sales = calculate(sum([Total_Sales]), ( ALL('Time'[Year],'Time'[Month]))

3months= calculate(VAR_SALES, FILTER('TIME,Time'[Month])<4)

What i need is as below

Month	Toota_Sales	Var_Sales	3months
1	0	100000	100000
2	0	100000	100000
3	0	100000	100000
4	0	100000	0
5	0	100000	0
6	0	100000	0
7	0	100000	0
8	0	100000	0
9	0	100000	0
10	0	100000	0
11	100000	100000	0
12	0	100000	0

[VahidDM]

Hi @Bitech 

Try this:

Column = 
Var _Sales = calculate(sum(Table[Total_Sales]), ALL(Table))
Var _MaxM = Max(Table[Month])

return
If(_MaxM<=3,_Sales,0)

If this post helps, please consider accepting it as the solution to help the other members find it more quickly.
Appreciate your Kudos!!
LinkedIn: www.linkedin.com/in/vahid-dm/

[Bitech]

This didnt  work , here 

Total_Sales is a measure and it does not have month in it

[amitchandak]

@Bitech , Assuming var sales is a measure try a measure

Measure =
var _1 = minx(allselected(Table) , Table[Month])
return
calculate([Var_Sales], filter(Table, Table[Month] <= _1 +3))

[Bitech]

@amitchandak  Here Var_Sales is a measure and Month is in Time measure. not able to use allslected function here