I don’t like the standard chart setting, from lowest value to highest value. Sometimes when there is little volume we see big jumps or dips but they are very small actually. We don’t get the idea of the scale. In a quiet day I would prefer to see a rather flat line than huge waves with x100 zoom. Or at least add the percentage in relation to the median value.
I would put a +-10% price variation as extremes in a standard setting for a daily chart and obviously more if there is a very big jump or dip.