How to calculate how many server resources 1 user needs?

Question

Flask

I am writing a flask application, the question arose of how to calculate how many resources will be consumed per 1 user, the application should search for links on another site by keywords and issue several pages with results. there is no registration and everything should be free for the user, only with advertising from Yandex direct or from Google. So I want to know how much will be consumed and how much advertising will have to be shoved in order for the cloud to pay off. What are the programs and what are they called?
if I wanted to place something on the cloud from Google, this is my first site. What are the recommendations?

Answer 1

This is not how it works, because you stuff ads there, the number of users will not increase. Well, in addition to users, there are expenses from bots, from background programs, etc.