The revenue for each individual stream of your track varies greatly based on a number of factors:
Platform (Amazon, Apple, Spotify etc. all calculate royalties in different ways)
Premium vs Ad-supported listeners (e.g. Spotify pay significantly more for streams from their Premium listeners)
Duration of stream (how much of the song was listened to)
Suspicious streams (e.g. 1 user listening to the same song on repeat 24/7)
Listener Location (you get paid differently for streams in certain countries)
Average Revenue Per Stream
On your Royalty Dashboard you will see a Revenue Per Stream stat which divides your total revenue by your total streams to show an average. This is intended as a very rough figure to help you understand how streaming pays.
This does not mean you're earning that exact amount for every individual stream. For example you could have a Revenue Per Stream of 0.3 cents, made up of:
200 streams from Premium Apple Music users at 0.5 cents per stream
and
200 streams from Spotify ad-supported listeners at 0.1 cents per stream.
In this illustration you would earn a total of 120 cents from 400 total streams with an average Revenue Per Stream of 0.3 cents.