Column calculation that returns value in a hierarchy

[angeloola]

I have a company ownership hierarchy table, where I need to add a column that indicates the ultimate parent. See example:

I need to calculate ultimate parent column based on the parent company ownership of company a. I have about 100k child companies with unique ids, each of which are associated with various parents with varying levels of ownership. 

The idea is to calculate a column that returns the ultimate parent based on the maximum percent ownership of each indiviual child company.

I've looked around the forum and tried a few things with no luck...

Thanks!

[Greg_Deckler · Accepted solution]

For the example given, I would think that the formula would go something along the lines of:

Column = 
VAR __tmpTable = FILTER(ALL(Table),[child company] = EARLIER([child company])
VAR __max% = MAXX(__tmpTable,[% ownership by parent])
RETURN 
MAXX(FILTER(__tmpTable,[% ownership by parent] = __max%),[parent company])

Something like that.

[angeloola]

Awesome!! THANKS!! 🙂