For some reason the P110 only accepts a minimum of a whole pound (UK Currency). Considering our current cost per kWh is around 23p (£0.23) I cannot get it to accurately give me the correct figure. Obviously putting 23 would mean its giving me a value consistent to £23 per kWh, and setting it as 0.23 gives me a flat reverse because its not correctly working it out. Anyone know of a fix, or a firmware patch that can correct this?