R12 Month Questions

[DBQuser1218]

I am newer to PBI and having problems with R12 month DAX code. 

I am trying to find the rolling 12 month of concrete qty and want to see what they are monthly. I am using DAX code-- 

Last 12 Months =

CALCULATE ( [Concrete Qty],

      DATESINPERIOD ( 'Ticket'[Ticketed Date],          -- returns period from date column

                      MAX ( 'Ticket'[Ticketed Date] ),  -- starting from MAX date

                      -12,                   -- shifting it back 12 intervals

                      MONTH                  -- each interval being a month

      )

)

When I put these in a matrix with total Concrete QTY I am getting the same values. 

Can anyone tell me what I am doing wrong? 

[Dangar332]

HI, @DBQuser1218 

just adjust your table and  column name

use below code instead of  MAX ( 'Ticket'[Ticketed Date] )

calculate( MAX ( 'Ticket'[Ticketed Date] ),allexcept('yourtablename','ticket'[yearcolumnname]))