There are sever steps on ding any company:
1st: Get the idea. You have this
2nd: You need to Register the company name. Think of the company name before hand with several options.
3rd: Make a bank account on the company's name
4th: Get a place of work: an office or a studio, paid or not
5th Hire the minimum staff.
6th: Start to work

The 2nd step is different in every country, you need to find what are the laws to let you legalize and register a company.

The 5th step is where I respond to your question:
Try to get a full time animator. You will need capital enough to pay this workers until the company get profit, but is very important that you have your own style, and for that you will need to have workers that have to implement that style

I would charge from 10 to 15% of the selling product cost.