Volumetric Analysis

I'm working my way through one of the Bentley Learn courses 'Site Design with Bentley Civil'. My question refers to the claim that Site is capable of "volume earthwork analysis". I can't seem to find any further verbage within the training, but I really just want to know if this is truly possible within Geopak Site.

Any tips on how one might go about actually calculating volume changes within a .tin (or other) model would be very helpful.