Creating DAX measures for sum, count, share, share change vs YA,etc

[Anonymous]

Hi my fellow power BI users, I have been wracking my head for a solution to this PBI assignment, I am pretty new to the PBI so while I was able to handle power query and all, I wanted to figure out the DAX measures for this, as this is the requirement (create measures).

So, we were asked to unpivot some fact columns causing all the metrics to be in one column and all the values in the adjacent column. Then we were asked to make a summary table by grouping segment, manufacturer and brand and then aggregate the fact columns. I didn't know how to do that without including the metric column too so I added that too.

Here, you can see how the summary table looks like and I need to create seperate measures for each that:

• calculate sum and count
• Share and Share change vs YA
• sum of Value Sales for 12 months based on month selected

For the sum, I was able to come up with something like: 

1 Measure = CALCULATE(SUM('Appended Table'[Metrics]),'Summary Table'[Total])

However I am not sure if its possible to calculate the sum for something in total column using the adjacent "Metric" row as a filter to what it should calculate

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[amitchandak]

@Anonymous , based on what I got. A measure like

Sumx(addcolumns(summarize('Appended Table', 'Appended Table'[segment], 'Appended Table'[manufacturer]) , "_mes" ,
Switch(True() ,
max(Table[Metric]) in {"A", "B"} , SUM('Appended Table'[Metrics]) ,
COUNT('Appended Table'[Metrics])
)), [_mes])