WTD Calculation Not working in SSAS

Question

Hi

I am creating WTD Calculation into SSAS but it is mot working as my expectations,I want to Week to Week data from this measure for example when I select Sunday it will return 7 days data from Sunday to Saturday.

When I select Monday it will return Monday to Sunday Data.

 

 

I am Creating these WTD measures

1.Aggregate(PeriodsToDate([Time].[Time].[Week],

[Time].[Time].CurrentMember),

[Measures].[Actuals_Sales])

2.Aggregate(WTD( [Time].[Time].CurrentMember),[Measures].[Actuals_Sales])