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## Compare data of one week with the data of the week before, while the date is chosen via slicer

Hi,

I've got some Google Searchconsole Data and I want to create a tile that compares the Average Position on a certain date, which is chosen by a slicer, with the Average Position one week earlier. The following just gives me a "(Blank)":

AveragePositionOneWeekEarlier = CALCULATE ( [AveragePosition] ; FILTER ( ALL (GSC[Date]) ; WEEKNUM( GSC[Date] ; 21) = [WeekSelected] - 1))

I tried inserting an "ALL" after "WEEKNUM":

AveragePositionOneWeekEarlier = CALCULATE ( [AveragePosition] ; FILTER ( ALL (GSC[Date]) ; WEEKNUM( ALL (GSC[Date]) ; 21) = [WeekSelected] - 1))

but then I just get an error about multiple Values while only one is expected.

The Measures used are the following:

Average Position = AVERAGE('GSC'[Position])

WeekSelected = MAX('OtherTable'[Weeknumber])

Can someone help me with that?

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Microsoft

## Re: Compare data of one week with the data of the week before, while the date is chosen via slicer

@GastroStuermer

Since you have date column in your table, you can add WeekNum column and Year column for your calculation.

`WeekNumber = WEEKNUM('Table'[Date],21)`
`Year = YEAR('Table'[Date])`

Then you can just create two measures to calculate Current Week AVG and Previous Week AVG.

`Current Week AVG = CALCULATE(AVERAGE('Table'[Amount]),FILTER(ALL('Table'),'Table'[WeekNumber]=MAX('Table'[WeekNumber]) && 'Table'[Year]=MAX('Table'[Year]))) `
`Previous Week AVG = CALCULATE(AVERAGE('Table'[Amount]),FILTER(ALL('Table'),'Table'[WeekNumber]=MAX('Table'[WeekNumber])-1 && 'Table'[Year]=MAX('Table'[Year]))) `

Regards,

2 REPLIES 2
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Microsoft

## Re: Compare data of one week with the data of the week before, while the date is chosen via slicer

@GastroStuermer

Since you have date column in your table, you can add WeekNum column and Year column for your calculation.

`WeekNumber = WEEKNUM('Table'[Date],21)`
`Year = YEAR('Table'[Date])`

Then you can just create two measures to calculate Current Week AVG and Previous Week AVG.

`Current Week AVG = CALCULATE(AVERAGE('Table'[Amount]),FILTER(ALL('Table'),'Table'[WeekNumber]=MAX('Table'[WeekNumber]) && 'Table'[Year]=MAX('Table'[Year]))) `
`Previous Week AVG = CALCULATE(AVERAGE('Table'[Amount]),FILTER(ALL('Table'),'Table'[WeekNumber]=MAX('Table'[WeekNumber])-1 && 'Table'[Year]=MAX('Table'[Year]))) `

Regards,

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Regular Visitor

## Re: Compare data of one week with the data of the week before, while the date is chosen via slicer

That worked instantly! Thank you! This solution is so elegant and easy 🙂

Regards GastroStuermer

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