The installation process itself doesn't really cost you anything. Once the software is deployed, you can stop the environment to limit the infrastructure costs to < $100/month. So, for the first month, consider that the baseline "install" cost.
When you start the environment and it is running, the infrastructure costs are ~$60/day or ~$2.50/hour (subject to change based on Microsoft pricing for the deployed infrastructure). Then, you would have the SAS Viya metered usage costs on top of that. There is an idle threshold on the SAS Viya metering, so you are not charged metered usage for just clicking around in the UI. You are basically charged when you submit work to the SAS Viya compute engines. Since sashelp.class is a very minimal data set, you would likely not run up significant charges. Even if you did do some heavier work, let's assume you end up with ~$5.00/hour average all in (infra + usage) for the sake of a ballpark estimate. That would give you 20 hours to try things out during the first month to stay within your $100 "install" + $100 usage cap.
An upcoming update will include an admin panel that will provide you with information about your metered usage charges so you will be able to track that within the environment. That will be included with the update I mentioned earlier where the infrastructure costs for a stopped environment will go to zero. So, you could wait for that to be announced if you wanted more assurance of your ability to contain / manage costs.
I hope this helps.
Rich
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