P100D: what's your 90% and 100% range?

[Peter Lucas]

My 90% tops out at about 285 or 286 and my 100% is usually 316. It hit 317 once.

That is the cars display of calculated range. Do you know what your real range is? My car (2016 90D) has a slightly degraded battery (72-73 available kwh) and it still displays a 275 mile range when fully charged. My actual range, driving at 340 wh/mi, is about 200 to 220 miles.
The cars display of range takes no account of battery degradation.