Calculate Cumulated Sales for Product and for Product Group

[bneumer]

I am trying to do an ABC Analysis for Sales. My Calculations are working for the Product group level but it does not work for the Product name level.

Here is the DAX Code for Cumulated Sales:

Here is how the Matrix looks like: As shown it calulates the cumulated sales for the Product Group level perfectly but when I dive in to the next level (Product name) it does not cumulates the sales it just shows the sales amount.

Does anyone have an Idea how I can also  calculate the Cumulated Sales for the Product name level? 

[Greg_Deckler]

@bneumer What strikes me as odd is the > CurrentSales versus using a Date. Generally anything cumulative you are going to want an Index or Date to key off of. 

Other than that, would need sample data.

Sorry, having trouble following, can you post sample data as text and expected output?
Not really enough information to go on, please first check if your issue is a common issue listed here: https://community.powerbi.com/t5/Community-Blog/Before-You-Post-Read-This/ba-p/1116882

Also, please see this post regarding How to Get Your Question Answered Quickly: https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490

The most important parts are:
1. Sample data as text, use the table tool in the editing bar
2. Expected output from sample data
3. Explanation in words of how to get from 1. to 2.