How to find the change between any two rows dynamically?

[afaro]

I have weekly data for each product. I want to find out the change between any two weeks of given product given I have a timestamp column specifying all relevant date/time info.  How do I do this? 

Thank you in advance. 

[v-xinruzhu-msft]

Hi @afaro 

Based on your description, you can consider to use datesinperiod() function.

e.g 

Measure =
CALCULATE (
    [Measure],
    DATESINPERIOD ( calendar[date], MAX ( 'Date'[Date] ), -14, DAY )
)

You can refer to the link about the function.

DATESINPERIOD function (DAX) - DAX | Microsoft Learn

Best Regards!

Yolo Zhu

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

DATESINPERIOD

[audreygerred]

Hi! Assuming you have a robust Date dim table, you can utilize the following links to do your week basewd time intelligence.

Week-Based Time Intelligence in DAX - SQLBI

Week-related calculations – DAX Patterns