Facebook with algorithm to know who is poor and rich

Facebook through an algorithm can determine our precise socio-economic level.
The project, baptized as 'Socioeconomic Group Classification Based on User Features', creates an accurate diagram by which it is able to determine the economic situation by starting from a number of basic parameters.

Which are? In the tree-shaped diagram, registered in July 2016, but only released right now, everything begins with the age of the user to reach the exact characteristics. If there is a home, how many technological devices it controls, which city it lives and what formation it has.

Alogarithm is a probability type, which assesses what the so-called class is part of the user. The objective of course is to always sell advertising more reliably.