If you really want an answer, I would have to respond "it depends." It depends on what you can negotiate with that Investor, literally.
Some may only want to give you a loan where they require repayment with huge interests, others may only want a percentage of profits (perpetually or for a term or until a sum amount has been recouped), and there are of course others who may want partial ownership (meaning share of the profits and the losses, and perhaps some management control.)
It all depends on you and the investor.
Disclaimer: The information that I post in this forum is NOT legal advice and should not be relied as such. It is intended to provide general information in summary form on legal topics. Formal legal advice should be sought in particular matters.