How to calculate the cost of a cloud server?

Question

Fintech

Good afternoon!

There is an idea for a SaaS project, but before you plunge into the whirlpool with your head and waste your last efforts and money on the development and launch, I would like to understand its payback.
Hence the question, how to correctly calculate the approximate cost of the server, for 10-100-1000 clients?

The service will be the same subject as YClients and the like.

Answer 1

Take no cloud will come out ten times cheaper

Answer 2

you first implement the project somehow. I'll tell you as an admin - to raise a ready-made site on the right server is not a problem;)

Answer 3

No way.
The cloud is good because you pay for a specific load.
You can even pay 0 for the first year.