New\Returning visitors report shows 107%

Reports and working with data
1

Hi,

I noticed that the engagement report in PiwikPRO shows strange values when it comes to separating new and returning visitors. The total number of visitors is 3839 but the sum of new and returning visitors is 4137, that is 107,77% which is an evident inconsistency.

Engagement
Engagement1920×920 102 KB

Is there a way to achive actual values of new\returning visitors in PiwikPRO that would not exceed 100%?

Thanks,
Alex

1 Like
2

Hi,

uniques are not the metric you should analyze in the context of adding up to 100% (compared with totals). If the same visitor (unique visitor ID) entered the page / mobile app twice during this period, he/she would be counted as both new and returning. But at the same time, the total value would be 1 (because there was just 1 unique ID). This math works only with sessions, where new visit results in a new session ID.

2 Likes
3

Thank you for the explanation!

1 Like
4

That’s right and it is why I prefer % of Sessions from Returning Visitors as a metric (Adobe Analytics does it like that (but you can also have the Visitor flavor if you like) over % Returning Visitors which always leads to this confusion.