My EV car (Chevy Bolt euv) has a 65kWh battery and about 400km range.
My (large heavy - 40kg) electric tricycle has a 1kWh battery and a 100km range (with no pedalling).
25% of the range for 1.5% of the battery capacity.
Although if I have a full load of groceries the range of my ebike is halved or so while my car is more or less unaffected.
This is why politicians rarely die in shark attacks