Week vs prior week in visual based on slicer selection

buttercream , You can not accomplish a trend based on that,

 

You can have measures

Last week =
var _max = maxx(ALLSELECTED('Date'[Date]),'Date'[Date] ) -1
Var _min = Max -6
return
calculate([measure], filter(all('Date'), 'Date'[Date] >= _min && 'Date'[Date] <= _max))

 

Next Week=
var _max = maxx(ALLSELECTED('Date'[Date]),'Date'[Date] ) +7
Var _min = Max +1
return
calculate([measure], filter(all('Date'), 'Date'[Date] >= _min && 'Date'[Date] <= _max))

 

same way you can calculate dates to display on labels

Hi,

Try this approach

1. Create a Calendar table
2. Create a relationship (Many to One and Single) from the Date column of your fact table to the Date column of the Calendar table
3. To your visual/table/slicer/filter, drag date from the Calendar table and select a date there
4. Write these measure

Total = sum(Data[Amount])

Total in this week = calculate([total],datesbetween(calendar[date],min(calendar[date])-6,min(calendar[date])))

Total in previous week = calculate([Total in this week],

datesbetween(calendar[date],min(calendar[date])-6,min(calendar[date])))

Hope this helps.