.

what you are trying to build is a pareto chart, if you google for it, you will find lots of howtos with power bi and dax.

Hi Anonymous 

It seems the subject and content have been removed and replaced by a dot in this question, based on the info from vik0810 , I'd like to suggest you calculate the cumulative amount using Calculate(SUM(),filter(All(table),[Col]<=max[Col]),values[Year/Month]),

detailed info please refer to:

https://community.powerbi.com/t5/Desktop/Cumulative-Running-Totals-in-DAX/td-p/42608

https://www.sqlbi.com/articles/computing-running-totals-in-dax/