For a 30 kWh LEAF, the correlation between miles driven and percent charge used is pretty much 1:1 for a healthy pack.
So, if you can drive 50 miles and use up 50% charge, then your LEAF has a decent pack. Obviously, try not to do the test in hilly terrain, nor on the highway at 70mph. Relatively flat highway driving at 55 mph with little to no wind and in dry conditions is ideal.
Ignore the GOM, reset your trip counter before you start, and then just drive. Minimal math skills needed - just use up 50% of the charge, then multiply the trip counter by 2 to estimate your full range.
Brand new, the EPA range on a 2017 LEAF was 107 miles. Your full range is likely between 90 and 95 miles.
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Loving my first BEV