According to my battery report on TeslaFi I have less than 2% degradation after 77.652 km (48.250 m)
Starting Range: 501,6 km (311,68 m)
Current Range: 492,22 km (305,85 m)
Range Loss: 9,38 km (5.83 m)
Percent Loss: 1,91 %
Hypermiling I've been doing more than 530 km (330 m) on a single charge