Create and compare custom time periods

[Anonymous]

Hi All,

I'm looking to create custom time period so I can compare the last 12 months of sales from this month (as today is in Nov 2021, I would want Nov 2020 - Oct 2021) to the previous 12 months prior to that (Nov 2019 - Oct 2020).

I would like this to update dynamically when the data is refreshed each month. 

Thanks in advance!

[v-yanjiang-msft · Accepted solution]

Hi @Anonymous ,

According to your description, here’s my solution.

1.Create a calendar table.

2.Rank the table by month.

RANK = RANKX('Table 2',[YearMonth],,DESC,Dense)

3.Create relationship of the two tables.

4.Create three measure.

Last 12 months sales = CALCULATE(SUM('Table'[Sales]),'Table 2'[RANK]IN{2,3,4,5,6,7,8,9,10,11,12,13})

Previous 12 months sales = CALCULATE(SUM('Table'[Sales]),'Table 2'[RANK]IN{14,15,16,17,18,19,20,21,22,23,24,25})

Compare = DIVIDE([Last 12 months sales],[Previous 12 months sales])

Best Regards,
Community Support Team _ kalyj

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

[Greg_Deckler]

@Anonymous You may find this helpful - https://community.powerbi.com/t5/Community-Blog/To-bleep-With-Time-Intelligence/ba-p/1260000

Also, see if my Time Intelligence the Hard Way provides a different way of accomplishing what you are going for.

https://community.powerbi.com/t5/Quick-Measures-Gallery/Time-Intelligence-quot-The-Hard-Way-quot-TITHW/m-p/434008