The reason there is a difference is because in Time Spent per
Visits(seconds) calculation, not all visits are counted - only those
that have the timespent seconds on page attribute set. This is not
exactly the same as visits - bounces. For many visits, there could be no
timespent set, and therefore they are not included in the avg timespent
calculation. This ends up with fewer of the visits being counted than
just subtracting the bounces, leading to a smaller denominator and
therefore a larger c...