Percent difference for two average scores

[quipmaster]

Hi Power BI Brain Super-Powered,

I could use your thought partnership on this issue.

I have average scores for six categories. However, I would like to calculate the percent difference between two average scores at a time.

I envision a percent change of  Average Score Dashboard BEFORE vs Average Score Dashboard NOW, Average Score Performance BEFORE vs Average Score Performance NOW, and Average Score Change Management BEFORE vs Average Score Change Management NOW.

I figure that I have to use the average score DAX (

Average Progress = AVERAGE('Progress Knowledge'[Progress Rating Scale])

in the % change DAX. But I am not sure about the rest of the % Change DAX. This post seems promising but unsure of how I can adapt DAX.

All nudges are greatly appreciated!

Category	Score
Dashboard BEFORE	.XXXX
Dashboard NOW	.XXXX
Progress Monitoring BEFORE	.YYYY
Progress Monitoring NOW	.YYYY
Change Management BEFORE	.ZZZZ
Change Management NOW	.ZZZZ

Progress Knowledge Data Table

Progress Knowledge Visual

[amitchandak]

@quipmaster , In power query use split by a delimiter and use the last delimiter

Power Query Split Column , Split Column By Delimiter: https://youtu.be/FyO9Vmhcfag

Then these two will separate out

then create a diff measure

calculate(Sum(Table[Score]), filter(Table, Table[Category] = "Before")) - calculate(Sum(Table[Score]), filter(Table, Table[Category] = "After")) 

or

calculate(MAx(Table[Score]), filter(Table, Table[Category] = "Before")) - calculate(MAx(Table[Score]), filter(Table, Table[Category] = "After")) 

[quipmaster]

Hi @amitchandak,

I believe i might missing a step. 

Split by Tab did not split the columns. However, split by space almost did the trick.

I created a custom column to accomplish what I think is the point of the split column.

I created this calculation, using your DAX as a guide. In my calculation, I used Now instead of After.

Before_Now =

calculate(Sum('Progress Knowledge (2)'[Progress Rating Scale]),

filter('Progress Knowledge (2)','Progress Knowledge (2)'[Before and Now] = "Before")) -

calculate(Sum('Progress Knowledge (2)'[Progress Rating Scale]),

filter('Progress Knowledge (2)', 'Progress Knowledge (2)'[Before and Now] = "Now"))

Quick question. The average progress is a  measure.

Thank you for getting me closer.

My end goal is that when a user hover's over the Progress Monitoring Now bar, a tooltip will appear and say 19.2% increase ((3.7 - 3.1)/ 3.1)) and so on for the other bars.

Ave Progress = AVERAGE('Progress Knowledge'[Progress Rating Scale])

The DAX would only accept a column. Therefore, I could not use the measure.