Scrolled percentage is the percentage of a web page that a user has scrolled down to view. The scrolled percentage of a web page can be an important metric because it provides insights into the level of engagement and interest of users.
To calculate the scrolled percentage of a web page, a web analytics tool will track the user's scrolling behavior on the page. As the user scrolls down the page, the tool will record the percentage of the page that has been scrolled and update this value in real time.