Hello,
at first the recommandations columns show absolut recommended values Users often mistakenly understand it as delta values. So number of 21 vCPU down means 21 vCPU is recommend. Not 21 vCPUs less of current state.
at second the documentation:
I have found general NETQOS PERFORMANCE CENTER INTEGRATION GUIDE VERSION 6.0 PDF in there you can find the VM Sizing Analytics results comes by SQL query placed in C:\NETQOS\portal\Integration\DataManager\VMWARE_CORE.xml
below lines
<!-- START: VMware Sizing Reports -->
<SelectCommand Name="sizing_report_clusters" Property="False" SupportedViewTypes="Tabular">
You can customize the report/view . If you need mentioned pdf guide let me know. I can't remeber now how I got it.
Regards Tomáš