I’m hosting a web service on AWS which will be online for about 24h. How can I work out the avg cost per user ?

I plan to host a web server running CTFd which will be set to auto scale throughout the event. It'll be sitting behind an elastic load balancer and connected to a database back end. All files for the event are on S3 and linked to on the webserver.

How can I calculate the average cost for this infrastructure on a per user level ? Is there an equation I can plug in figures for each AWS tool and give me a price ?

submitted by /u/Fen-Jai
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