Create an article in Drupal outlining how to configure chargeback in Red Hat CloudForms.

The article must cover the following points:

* What is chargeback?
* What does configuring chargeback entail?
* Why would a user want to use chargeback?

The currently envisioned outline is as follows:

Overview
A conceptual introduction that talks about chargeback, and provides an overview of the task the user will perform. This section may contain diagrams and information that helps develop an understanding of the task.

Procedure
The actual steps required to configure chargeback - only general options need be included.

A conclusion that provides a brief overview of what the user achieved, and a little information on what they can do next.