balance_tracker 8.x-1.x-dev

Hello, and thank you for reading!

I am inversor and I want to start small business, so I want Drupal just for one user can check his balance, and the administrator can change it, only the admni, and the user only can see.

It is a big pain, I have found a module for my Drupal 8, (I have updated it to the last core) and this module is: 

https://www.drupal.org/project/balance_tracker/releases/8.x-1.x-dev

But i do not get how i can change the the funds, just i can see that me, and my users have 0,00 $,

May someone support me please?

Thank you in advance,

Drupal version: 


Source: https://www.drupal.org/taxonomy/term/4/feed