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Frequent Visitor

Last Year Sales Data is Off By One Week

I have a matrix to compare the sales of the past week (week 37) and the same week last year as such: 

PY_SalesAmt = CALCULATE(sum(Sales[NetAmount]),DC03_Calendar[Fin_Year] = "2017")

The problem I am encountering is that instead of pulling the data from last year week 37 it is pulling the data from last year week 38.

 

How can I make an adjustment so these dates line up properly? My last fiscal year is 53 weeks which i believe is the problem.

2 ACCEPTED SOLUTIONS

Accepted Solutions
Highlighted
Microsoft
Microsoft

Re: Last Year Sales Data is Off By One Week

Hi @igibson,

 

According to my test, DATAADD and SAMEPERIODLASTYEAR both have a granularity of DAY. Maybe we have to get the same week by ourselves if you want the exact same week (same week number). 

CouldbeRight =
VAR currentWeeknum =
    MIN ( 'Date'[Weeknum] )
VAR currentYear =
    YEAR ( MIN ( 'Date'[Date] ) )
RETURN
    CALCULATE (
        FIRSTDATE ( 'Date'[Date] ),
        FILTER (
            ALL ( 'Date' ),
            'Date'[Weeknum] = currentWeeknum
                && YEAR ( 'Date'[Date] )
                    = currentYear - 1
        )
    )

Last Year Sales Data is Off By One Week .jpg

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

As we can see from the picture, the first day of week 52 of 2010 is 12/19/2010, not 12/18/2010.

 

 

Best Regards!

Dale

Community Support Team _ Dale
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

Highlighted
Frequent Visitor

Re: Last Year Sales Data is Off By One Week

A very simple soultion that I implemented was a change in the calendar. I simply used Fin_Week = WEEKNUM(DC03_Calendar[Date]+1,21).

View solution in original post

4 REPLIES 4
Highlighted
Super User IV
Super User IV

Re: Last Year Sales Data is Off By One Week

Hi,

 

If in your filter, you have chosen a specific date range, then use the SAMEPERIODLASTYEAR() function in the CALCULATE function.


Regards,
Ashish Mathur
http://www.ashishmathur.com
https://www.linkedin.com/in/excelenthusiasts/
Highlighted
Microsoft
Microsoft

Re: Last Year Sales Data is Off By One Week

Hi @igibson,

 

According to my test, DATAADD and SAMEPERIODLASTYEAR both have a granularity of DAY. Maybe we have to get the same week by ourselves if you want the exact same week (same week number). 

CouldbeRight =
VAR currentWeeknum =
    MIN ( 'Date'[Weeknum] )
VAR currentYear =
    YEAR ( MIN ( 'Date'[Date] ) )
RETURN
    CALCULATE (
        FIRSTDATE ( 'Date'[Date] ),
        FILTER (
            ALL ( 'Date' ),
            'Date'[Weeknum] = currentWeeknum
                && YEAR ( 'Date'[Date] )
                    = currentYear - 1
        )
    )

Last Year Sales Data is Off By One Week .jpg

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

As we can see from the picture, the first day of week 52 of 2010 is 12/19/2010, not 12/18/2010.

 

 

Best Regards!

Dale

Community Support Team _ Dale
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

Highlighted
Microsoft
Microsoft

Re: Last Year Sales Data is Off By One Week

Hi @igibson,

 

Could you please mark the proper answer as solution or share the solution if it's convenient for you? That will be a big help to the others.

 

Best Regards!
Dale

Community Support Team _ Dale
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Highlighted
Frequent Visitor

Re: Last Year Sales Data is Off By One Week

A very simple soultion that I implemented was a change in the calendar. I simply used Fin_Week = WEEKNUM(DC03_Calendar[Date]+1,21).

View solution in original post

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