Unassigned Workstation and Workstation Scanned Count is incorrect

Unassigned Workstation and Workstation Scanned Count is incorrect

Under the Scan Summary section of the Assets tab the "Unassigned Workstations" = 29 but when I click on it I only see 6 listed.  I've changed the filters and can't figure out where the remaining 23 computers are.
 
Could you possibly share the query being used so I can run it and see what other computers it thinks are unassigned?
 
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Also under the same Scan Summary section it lists "Workstations Scanned" = 3706 but when you click on it the result only show 3405 (All Workstations, All States in All Domains).  Where are the 302 workstations missing from this count?
 
Thanks for any assistance, My team just wants to make sure our scans are correct and the fact the numbers are not matching up is a little worrisome.
 
Regards,
Shayne K.

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