I'm actively trying to hire or pay someone to develop a website for me, however I don't even know the technical term for what kind of website it is so I don't know where to start to look...

The website I want to design is much more advanced then just a simple content website (I'd do that myself). It is a website that draws a lot of parallels to a 'virtual stock exchange' website.

In a nutshell it has to be able to take simple inputted user data (numbers), and take these numbers and output graphs and plots based on my equations I've generated. (simple excel equations). So once the user inputs his numbers, they are referenced against real numbers and create trend graph and patterns that grow and accumulate over time.

The user needs a profile and access to an area to input numbers and access to these graphs.

What kind of website is this called and how to find someone to build it for me!?

Thank you!