MightyGem - Just some simple maths in accordance with the update I posted on the 21/11/2024.
If there are 24 aircraft in the NPAS Fleet, to work one aircraft out as a percentage would be 100
÷ 24 = 4.16666666667
So, if there were 9 of NPAS Aircraft Offline, 4.16666666667 x 9 = 37.5%
That's how I calculated my figures.