Log in your Sellcloud panel, enter your Server tab management page. Click on Power tab.
Power off button will do a hard shutdown of your server, the same as pulling a power cord. This action may cause data loss.
Attempt shutdown button will send an ACPI signal to your server. If your server is using a standard configuration, it will do a soft shutdown.
Please note that we still have to bill powered down servers. See Docs for details. To end billing, destroy the Server instead.