I am almost sure that this is caused by segments. Segments first slice
and dice the data with the conditions and based on what you have
selected (date range) the computations for visit/visitor/PVs are done.
Ex: If you have a hit level segment with pageName = "home", then the
data cube only with qualifying hits are taken. Then on this, visits,
visitors, etc. are calculated. Best is based on what insight you are
looking for, find another method and try the same. Lets discuss on the
outcomes to arr...