Hi @Gergo Vadasz ,
it looks like the Azure Compute and Disk costs aren't the costs drivers. In this case the main costs are for licenses and can't be decreased because the license costs for Pfsens aren't in control of Microsoft (Azure).
If I got you right you deployed the Pfsense firewall and deleted the VM after a few days?
If so: The forecast costs in the graphic means if you are running the VM for a full month it will be 112€ based on the actual cost calculation of few days. But you deleted the resources after a few days so the forecast costs will be decreasing within the next days.
(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
Regards
Andreas Baumgarten