in your case 100% is the solenoid passing all available boost to the WG's to force them open. Same theory for the electrical WG's, but some Read 100% as "fully closed".So what’s 100% then?
For example, my 2014 F150 shows 0% as fully open and 100% as fully closed. My Wife's ST is the opposite, 100% is fully open and 0% is fully closed. In both of these examples, they are Vacuum WG's and not Electronic.
If you want to confirm, have a peak at your logs, usually at lower RPM of a WOT run, the WG's don't have to be as far closed to target boost levels. So as you go higher in the RPM of the pull, the WG's are closing more to meet the demand and flow more #/min