3 Replies Latest reply on Sep 15, 2016 10:21 AM by David Li

    Is it possible to do a Table Calculation for Percent Difference for "Last 12 Months"?

    sam.hong.0

      Hi,

       

      I am trying to calculate percentage changes for last rolling 12 months of my date. However, Tableau only allows me to calculate it relative to a given year such as "2015" and "2016". I want to be able to have Tableau count number of records for example August 2015 - September 2016 and then Septmber 2015 - October 2016. The current default method would count everything in 2015, which I don't want.

       

      Is there a way to set a given date range?

       

      Thanks,

      Sam