SELECT
[Workstations Total] = (SELECT COUNT(1) FROM [vComputer] WHERE 1=1 AND NOT [OS Name] LIKE '%server%')
, [Workstations Managed] = (SELECT COUNT(1) FROM [vComputer] WHERE 1=1 AND NOT [OS Name] LIKE '%server%' AND [IsManaged] = 1)
, [Workstations Unmanaged] = (SELECT COUNT(1) FROM [vComputer] WHERE 1=1 AND NOT [OS Name] LIKE '%server%') - (SELECT COUNT(1) FROM [vComputer] WHERE 1=1 AND NOT [OS Name] LIKE '%server%' AND [IsManaged] = 1)
, [Servers Total] = (SELECT COUNT(1) FROM [vComputer] WHERE 1=1 AND [OS Name] LIKE '%server%')
, [Servers Managed] = (SELECT COUNT(1) FROM [vComputer] WHERE 1=1 AND [OS Name] LIKE '%server%' AND [IsManaged] = 1)
, [Servers Unmanaged] = (SELECT COUNT(1) FROM [vComputer] WHERE 1=1 AND [OS Name] LIKE '%server%') - (SELECT COUNT(1) FROM [vComputer] WHERE 1=1 AND [OS Name] LIKE '%server%' AND [IsManaged] = 1)