Measure should be untouched by filter

HI All,

Here I am asking something entirely opposite.

I want to create a measure which should be uneffected by any page level filter or visual filter.

And I should have option to hardcore the filter for only this measure.

For example, I create a measure which calculate the sum of students. 

Measure 1 = SUM(table[Strength])

In power Vi visual: I got a table like this

To get this table I applied the filter on this table. Like class = 9, age is only between 15 to 20.

Now I want to get another column which should have the total strength regardless of these condition i.e. class = 9, age is only between 15 to 20. But it should be senstive to slicer because from there I am getting year.

Desired output will be something like this:

So I can calculate the percentage 12/100, 18/200, 20/150...

What i am getting now is:

Hope it is clear.

Please advise, Thanks.