I believe that's at Vin - so at whatever voltage you use from 4v to 16v.
It may be less from the coin cell.
Looking at the MIC5225 voltage regulator I think that is the issue. It's advertised as 'Ultra-Low Quiescent Current', but then delving deeper, it's actually drawing about 30uA all by itself.
So you could probably replace it with something else, but when the LCD is on it's drawing way more power anyway.
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