As the title suggests.
The “Everward” passive point (top left) of the Focus skill tree supposedly gives 50% ward retention per point, while channelling Focus.
I currently have 3 points allocated to Everward, and so I should be getting 150% ward retention while channelling. Instead, looking at the tooltip in the “additional defences” section of the character sheet, I gain 450% ward retention while channelling the Focus skill. (This is true both with and without the extra ward retention gained from teleporting recently.)