Statistics for additive arrangements
The Arrangement Statistics 
tool displays key information about arranged components. It displays the number of arranged components, the solid volume of those components, and the build height of the tallest component. In addition, it calculates the arrangement density as a percentage, based on the available build volume and build height of the components.
Arrangement density by build volume tells you the percentage of the total build volume that the components are occupying. Arrangement density by build height is similar but goes up only to the height of the tallest component.
Note: The Arrangement Statistics tool does not consider support structures or components that have lattice structures created using Volumetric Lattice.