How to sum up a measure based on different levels in Power BI using DAX - powerbi

Question

I have the following table structure:
| Name 1 | Name 2 | Month | Count 1 | Count 2 | SumCount |
|--------|--------|--------|---------|---------|----------|
| A | E | 1 | 5 | 3 | 8 |
| A | E | 2 | 1 | 6 | 7 |
| A | F | 3 | 3 | 4 | 7 |
Now I calculate the following with a DAX measure.
Measure = (sum(Table[Count 2] - sum(Table[Count 1])) * sum(Table[SumCount])
I can't use a column because then the formula is applied before excluding a layer (eg. month). Added to my table structure and excluded month it would look like that:
| Name 1 | Name 2 | Count 1 | Count 2 | SumCount | Measure |
|--------|--------|---------|---------|----------|---------|
| A | E | 6 | 9 | 15 | 45 |
| A | F | 3 | 4 | 7 | 7 |
I added a table to the view which only displays Name 1in which case the measure of course will sum up Count 1, Count 2 and SumCount and applies the measure which leads to the following result:
| Name 1 | Measure |
|--------|---------|
| A | 88 |
But the desired result should be
| Name 1 | Measure |
|--------|---------|
| A | 52 |
which is the sum of Measure.
So basically I want to have the calculation on my base level Measure = (sum(Table[Count 1] - sum(Table[Count 2])) * sum(Table[SumCount]) but when drilling up and grouping those names it should only perform a sum.

Answer 1

An iterator function like SUMX is what you want here since you are trying to sum row by row rather than aggregating first.
Measure = SUMX ( Table, ( Table[Count 2] - Table[Count 1] ) * Table[SumCount] )
Any filters you have will be applied to the first argument, Table, and it will only sum the corresponding rows.
Edit:
If I'm understanding correctly, you want to aggregate over Month before taking the difference and product. One way to do this is by summarizing (excluding Month) before using SUMX like this:
Measure =
VAR Summary =
SUMMARIZE (
Table,
Table[Name 1],
Table[Name 2],
"Count1Sum", SUM ( Table[Count 1] ),
"Count2Sum", SUM ( Table[Count 2] ),
"SumCountSum", SUM ( Table[SumCount] )
)
RETURN
SUMX ( Summary, ( [Count2Sum] - [Count1Sum] ) * [SumCountSum] )

Answer 2

You don't want measure in this case, rather you need new column,
Same formula but new column will give your desired result.
Column = ('Table (2)'[Count1]-'Table (2)'[Count2])*'Table (2)'[SumCount]