Thanks for the prompt reply.
But im looking to sort the dates column ( the latest date ) , not a calculated column like Total .
I think you got me wrong. Sorry for the lack of communication .
I need a my product column to populate all top 15 products according to the corresponding values they have ,
Ie the the product with highest value will come at the top and the lowest will come down.
the issue here im facing is, Tableau give me a combined top 15 of current day and the previous day (date) .
Whereas I need to compare the top 15 devices for current date with the prebious date ( not a problem if last day shows blank instead of value but my latest date should populate all the devices in the order of Value ( Max to Min )