guys i do need help for calculating range like no effect of terrain and anything. i need macro anything on my excel document to simultaneously calculate distance vs battery percentage .that is whenever it goes from 80% to 5% it will charge again means reset its counter and so on . my total range is 560 km on one charge that is if battery 10% it has completed 450 km.consider 505 km on one charge and reset counter .the distance is in km and accordingly percentage moves .for the first time the counter is 100%-10% only and other times its 80%-5%.hope u guys get it its same as km/litre.but this time percentage of car battery.please guys help me with it.