How to use Filter selection as a VAR in DAX

[rodfernandez]

Hello,
I have the following table

Id	Month	Zone	condition
1	1	South	Open
2	1	North	Open
3	1	North	Close
4	2	South	Open
5	2	North	Close
6	3	North	Close
7	3	South	Close
8	3	North	Open
9	4	North	Close
10	5	North	Open
11	5	South	Close
12	6	South	Close
13	7	North	Close
14	7	South	Open
15	8	North	Open
16	9	South	Close
17	10	North	Close
18	11	North	Close
19	11	North	Open
20	12	South	Close

I need to create a table that in the first row count the amount of “Id” for any condition (Open or Close) from month 1 until the selected month in the filter for each zone.

In the second row, I need to show the same number calculated in the top row but multiply by the select month number and divided by 12

In the third row, I need to count the amount of “Id” but only the ones that are “Open” from month 1 until the selected month in the filter for each zone.

For example if you choose month 4 in the filter, you should get the following table

	South	North	Total
Number of events	3	6	9
Percentage at this month	1	2	3
Number of open events	2	2	4

Were the 1, 2 and 3 in the second row comes from this formula, for the first column is 3*4(select month)/12 and for the second column is 6*4(select month)/12

thanks

[parry2k · Accepted solution]

@rodfernandez solution is attached, you can change it as per your need.

[rodfernandez]

One little question, what would have change in this measure 

Number of Open Events = CALCULATE( [Number of Events]; Table1[condition] = "Open" )

if in the condition column instead of  having 2 possible states ("Open" and "Close") you would have 4 possible states ("Open", "Close", "In Maintenance" and “ReOpen” ) and you want to display all the ones that are "Open" and "In Maintenance".

Thanks!

[rodfernandez]

Amazing, thanks!