Hi,
I am quite new to the cloud and I have some confusions. I hope I am on the correct category. For testing purposes, I want to create a serverless autonomous database but I am not sure about the cost.
Now, on the cost estimator (https://www.oracle.com/cloud/costestimator.html) I added "Database - Autonomous Database" as below:

it says 502$ per month but I will use this database for 2-3 hours. on pricing page (https://www.oracle.com/autonomous-database/pricing/#atp) “unit” is “per hour”. so my question is, if I use 3 hours of this database, cost will around 2$ ((502.28$/744 hour) * 3 hour). is that correct?
also, there will be a backup storage cost as cloud UI says. it is around, 1.22$ per month:

so, for 3 hours usage will cost only few dollar's , is that correct?
and as far as I understand, for the database I described, I should configure it on OCI like this right?

thanks for your replies. if my question is wrong place, I would appreciate if mods would move it to correct place.