Last 2 weeks sales

[sidds_sriv]

Hi,

I have a sales data on daily basis for each store-sku combinations....From this i am creating weekly report. For each week, we are taking sum of sales, etc...The data start from week number 6.

Now for each I would like calculate the Last 2 weeks sales. For example for week 8 i want to calculate the sales of week 6,and 7.  For week 9, i want to calculate the sales of week 7 and 8 ...so on and on...

Need Help on how to have this data in the report.

Thanks and Regards

Siddhartha Srivastava

[AlexChen · Accepted solution]

Hi,

For example,  Your sales table is like below:

You can create a measure to calculate the sum of salesAmount of weeknum 6 and 7:

 last2WeeksAmount = CALCULATE(sumx(sales, sales[salesAmount]),Filter(ALL(sales), sales[weeknum]=max(sales[weeknum])-1 || sales[weeknum] = MAX(sales[weeknum])-2))

Best Regards

Alex

[vrocca]

How does this behave for the first week of the year? 

Thanks

[sidds_sriv]

Thanks Alex, it worked...really appreciated...

Just wanted to know if I need to caclulate Last 2 week sales for a particular product/category...for example for Car/Gun then how should i change the query.

[MattAllington]

You need a calendar table with a unique Week ID column. Read about that here 

http://exceleratorbi.com.au/power-pivot-calendar-tables/

As as long as you have a unique week ID column, you can write a formula like this 

Last 2 Weeks :=
CALCULATE (
[Total Sales],
FILTER (
ALL ( Calendar ),
Calendar[WeekID] >= MAX ( Calendar[WeekID] ) -1
&& Calendar[WeekID] <= MAX ( Calendar[WeekID] )
)
)

[uksrik]

Awsome, That was a cool trick Matt!!!

I used used your logic to calculate Current Week Measure:

CALCULATE(
'TableQuery'[Sales US($)],
FILTER (
ALL ( 'Sales US($)' ),
[TableQuery] >= MAX ( 'TableQuery'[Fiscal Year and Week] )
))

[sidds_sriv]

Thanks Matt , it worked....