Tuesday weekending and compare to previous week

[cmath]

Hi all,

I need to have Tuesday as my weekending. Then I need to be able to compare totals of the week selected to the previous week.

Example: Compare current week (from 10/08/22 - 16/08/22) to previous week (from 03/08/22 - 09/08/22)

Whilst Ive managed to get the weekending date as Tuesday, the dates do not align accordingly and therefore totals are incorrect too. Please refer to screenshot below - Week ending 09/08/22 should include dates from 03/08 - 09/08. The totals for products should also add up according to the weekend selected.

This is the measure Ive used for Week Start Date 

Week Start Date = Dates[Date] - WEEKDAY(Dates[Date],2) + 3

Would appreciate any assistance with this.

Thank you.

[amitchandak · Accepted solution]

@cmath , What I do is to create  a week rabk on week start date

new column

Week Rank = RANKX(all('Date'),'Date'[Week Start date],,ASC,Dense)

Weekday = datediff([Week Start Date], [Date], Day) +1

Then 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))
Last year Week= CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=(max('Date'[Week Rank]) -52)))

WTD = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=max('Date'[Week Rank]) && 'Date'[WeekDay]<=max('Date'[WeekDay])-1))
LWTD = CALCULATE(sum('Table'[Qty]), FILTER(ALL('Date'),'Date'[Week Rank]=max('Date'[Week Rank])-1 && 'Date'[WeekDay]<=max('Date'[WeekDay])-1 ))

Power BI — Week on Week and WTD
https://medium.com/@amitchandak.1978/power-bi-wtd-questions-time-intelligence-4-5-98c30fab69d3
https://community.powerbi.com/t5/Community-Blog/Week-Is-Not-So-Weak-WTD-Last-WTD-and-This-Week-vs-La...
https://www.youtube.com/watch?v=pnAesWxYgJ8

Time Intelligence, DATESMTD, DATESQTD, DATESYTD, Week On Week, Week Till Date, Custom Period on Period,
Custom Period till date: https://youtu.be/aU2aKbnHuWs&t=145s

Any Weekday Week - Start From Any day of Week
https://community.powerbi.com/t5/Community-Blog/Any-Weekday-Week-Decoding-Date-and-Calendar-2-5-Powe...

https://medium.com/chandakamit/cheat-sheet-any-weekdays-week-start-date-just-one-variable-apart-6b2e...

[cmath]

@amitchandak awesome! it worked beautifully! i had to change my start of week syntax to the one below as per one of your posts

Week Start date(Wed-Tue) = 'Date'[Date]+-1*if(WEEKDAY('Date'[Date])<4,WEEKDAY('Date'[Date])+3,WEEKDAY('Date'[Date])-4)

Thank you!