Visualize Current and Previous Week in cards

This might have been solved, I have tried some solutions however I haven't achieved what I need.

So the situation is this, I have a table like this:

So, this is just a sample of what I have.

What I need to have is a card that shows the values from the latest week, and a second card to show the results from the week before. I can visualize the latest one, but haven't achieved to do it for the previous one.

So, I have the card to visualize the results for a, b, c, d, or combined (by using filters for article)

But haven't achieved to see them for the week between 29-jul and august 3.

I have already tried by creating a calendar table, and create the relationship with the date in my results table. I think my problem is in my DAX formula

Previous week = calculate([Total], datesbetween( calendar[date], min(calendar[date]) - 7, min(calendar[date)))

And then added that measure to the card visual

I have tried this:

Last Week =
VAR CurrentWeek = WEEKNUM(TODAY(), 21)
VAR CurrentYear = YEAR(TODAY())
VAR PreviousWeek = IF(CurrentWeek = 1, CALCULATE(MAX('Table'[Week]), ALL('Table'), 'Table'[Year] = CurrentYear - 1), CurrentWeek - 1)
VAR PreviousYear = IF(CurrentWeek = 1, CurrentYear - 1, CurrentYear)
RETURN
SUMX(
    FILTER(
        ALL('Table'),
        'Table'[Week] = PreviousWeek && 'Table'[Year] = PreviousYear
    ),
    [Total Evaluation]
)

It's been able to calculate the whole SUM for all the articles in the previous week, between 29-jul and august 3 in this case

However, when I add a Slicer (Tile) to select the article, I should get the SUM just for that article, but that is not happening and still gives me the SUM for the whole week. In resume, the slicer is not working properly.

Thanks in advance