Hi,
in Trends, I'd like to plot NP/kg over longer intervals. I already do it with wpk (average power), see image:

As an example, here is the formula for 90 minutes best average power / kg: BEST(wpk, 5400).
But I cannot figure out how to plot the best NP/kg instead of wpk for a certain long interval.
Any suggestions?
Thank you!
Riccardo