Inefficiency (Advanced)  
The formula used to compute the energy lost to Inefficiency by a base is:

     Inefficiency = (Energy * Distance / (64 - ((4 - Efficiency) * 8))

Energy | Amount of energy produced by base this turn.
Distance | Distance from Headquarters base (16 if no HQ).
Efficiency | Social Engineering EFFICIENCY (+2 if Children's Creche)

* If denominator reaches zero, ALL energy is lost to inefficiency.