A 676kW power station delivers power to a factory. The power is delivered through wires with a total (i.e. round-trip) resistance of 3.76Ohm. How much less power is wasted in the transmission wires if the electricity is delivered from the power station at 54200V rather than 13700V? (Hint: Consider the power plant as a battery delivering the voltage for the transmission line. How much current is flowing through the wire?)