How to correctly calculate the load on the server?

Question

Server equipment

It is planned to create a service that will provide a constant stream of statistical images and sound files, but each file will be from 50 to 150 kilobytes - the specifics of the service.
How to correctly calculate the load on the server server in order to select the necessary, but not unnecessary resources?
1. Averaging. If the server sends a 50 KB file every second, then a channel of 400 kilobits per second per user is needed. Around yes 500 KiloBIT per second per user. If there is a channel of 1000 megabits per second, then it will be able to serve 2000 users simultaneously in real time? Are the calculations correct?
2. If you really manage to load such a channel at 1000 megabits per second at 100% within a month, then: 1000 * 60 * 60 * 24 * 30 \ 8 = 324 terabytes of traffic per month from one server? Are these calculations correct?
3. 324 terabytes of traffic per month at a price of 0.02 dollars per gigabyte will cost 6480 dollars?
4. What type of hosting is best for this?

Answer 1

1) are correct if the hoster is not bullshit, and gigabit will give you.
Gigabit is subtract 20% (well, 14%, okay) and then divide by 8 for the transmitted byte 6 hours - 15% of the maximum, draw an integral, count
3) 10 TB cost $ 40, 300 - respectively, 1200. Usually discounts from 50 TB, then from 100, etc., so it's even cheaper
4) cloud with unlim traffic preferably, when you decide on the peaks - you can already select a server

Answer 2

> 4. What type of hosting is best suited for this?
If you really have 324TB per month (hardly at all, but still) - then only 100tb.com will do