# RGraph: HTML5 canvas graph library - Funnel chart

The funnel chart can be used to show stages in a sales or order process, from initial lead/contact through to actual sale. It works well if you have a diminishing process, like that shown below. It can show potential revenue in each stage, or like below, it can show actual numbers. It can also highlight potential problems in an organisations sales and/or order fulfillment processes.

- Funnel chart API documentation

Initial contact
All potential cutomers were contacted and
interest was established.
Established lead
Customers who were interested had their details
recorded and passed to the sales team.
Sales Call
Interested Customers were called by the
sales team.
Site visit
The Customers site was visited by a representative
of the sales core.
Sale agreed
A sale was finalised by the sales core.