Show sparkline evolution figures for visits, goals and ecommerce overviews #10716

Would be handy to see evolution as number (xxx%) on all overview sites
(like it's already on referres)

If we can enable this using some generic solution that we can reuse and already exists in core then we enable this feature also on other Overview sparkline reports such as Visitors -> Overview and Goals -> Overview and Ecommerce -> Overview.

If it takes more than 8 hours to complete this we stop working on it.

This issue has been mentioned on Matomo forums. There might be relevant details there:

https://forum.matomo.org/t/widget-difference-in-percents-for-traffic-with-yesterday/46832/3