Back Navigation Rate
The back navigation rate is the percentage of times a visitor navigates backward during a visit.
Back navigations occur when the visitors go back to pages they have visited immediately before – for example by clicking on the back button of the browser.
Back navigations can go on for more than one page view if the visitor has moved forward many times and then clicks multiple times on the back button of his or her browser.
The back navigation rate is calculated as the number of pages visitors navigate back to divided by the total number of navigations. Notice that visits with only one page view do not include any navigation and are therefore not part of the calculation.