How to get list of values that were removed from one week to another?

[dmarcos]

Hi there!

I was wondering if it was possible to get the list of values from a column that were deleted from last 7 days for a list.

My example would be : I have a list of capabilities of 1400 on the week begining on july 17th and on my extract of this week (begining on july 24th) I have 1388, how do I see which ones were deleted?

Many thanks!

[dmarcos]

@amitchandak Thanks for the quick response!

I wanted to know the 'Date' is a field in the table? In my case the date column is call SnapWK...

Thanks for your help!

[amitchandak]

@dmarcos , You need to have master table for that

With help from week rank column in date table have measure like

Week Rank = RANKX(all('Date'),'Date'[Week Start date],,ASC,Dense)
OR
Week Rank = RANKX(all('Date'),'Date'[Year Week],,ASC,Dense) //YYYYWW format
measures
This Week = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=max('Date'[Week Rank])))
Last Week = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=max('Date'[Week Rank])-1))

Not in this week  = countx(Values(List[List]), if (isblank([this week]) && not(isblank([last week])) , [List], Blank()) )

same like

Customer Retention Part 1:
https://community.powerbi.com/t5/Community-Blog/Customer-Retention-Part-1-Month-on-Month-Retention/b...
Customer Retention Part 2: Period over Period Retention :https://community.powerbi.com/t5/Community-Blog/Customer-Retention-Part-2-Period-over-Period-Retenti...