If you figure the stated 20 percent loss of range for 100,000 miles that means owners who are at 50,000 miles should be a 10 percent down in range. (if linear) I'm at 44,000 but can't tell my losses accurately since the various firmware changes have dropped my range so much I don't know where I am in relation to when I bought new.
As i remember when new, I would get 192 miles showing in Standard and 238 in Range, Now it's about 182 S (on a good day) and 228 R. Again many firmware changes dropped my range when I charged the day after getting the car back.
Probably not much use to you. I guess I just wanted to vent.