After having searched well, I still cannot find the solution to my problem,Thank you for your help.
I want to calculate the evolution of the last 6 months in Power BI, but from a given date, for example here we do it from 01/12/2015, but not from the last date (01/01/2016). So I have to divide each value of the month 12/01/2015 by the corresponding value in the last sixth month then withdraw 1 for each element (see example attached).
please see if attached fulfills your needs.
I added a date table, calculated the 6 months before value with DATEADD and then divided them to get the growth.
If you want to compare only two dates selected date and corresponding last sixth month, we can do in multiple ways.
Simple solution is create three measures for 01/12 ,01/6 and evolution last 6 months, but the first 2 measure names are not dynamic. For dynamic labels we’ve to create cards and place on top of that measures.