The number of enterprise account licenses that have been transferred to your organization. One license covers one seat; IE, up to two machines in use by one person.
The calculation made to give you an estimate of how many licenses are needed looks like this:
Licenses required = Unaccepted Invitations + members that are not administrators + Administrators with an assigned license + Non-User Machine Claims.
The number of machines that have been registered as using the DRM enabled Odin build.
Note that this number can in some cases be more than the number of members on your team. A single license seat covers up to two machines, in use by one person.
An estimated number that indicates whether you have more or less licenses than needed. If this number is negative, you do not have enough licenses.
The calculation looks like this:
Compliance = Available Licenses - Licenses required.
Note that the license requirement is an estimate; the number is precise, given that the information and claims the system has been given are correct. As such, the number given is a guideline assuming correct usage of the system, and the actual number of legally required licenses may differ as defined by the EULA.