When running an Availability by Group report using Operational Reports the percentage availability in the report is calculated incorrectly. If you proceed to click on the percentage and review it in Portal, the calculation is correct.
The report shows Availability incorrectly:
When you click on the percentage and view the Up time in Portal the correct percentage is displayed:
Incorrect group calculation in the code
The fix is tentatively scheduled to be included in NetOps 25.4.10 and above.