We are covered by the Barrier ritual with 71.0% strength left!
Is this message, on the Throne page, supposed to represent how much time is remaining for the ritual spell? If so, it is not at all accurate. The ritual I posted above is going to expire in a couple hours. It would be helpful to display the actual time remaining (as Utopian days), instead of a percentage, anyway.
Or...is it that the effects of the ritual spell decrease as time progresses? That was not mentioned in the descriptions of the ritual spells, but that's the only interpretation I can think of if it's not trying to display the remaining duration of the spell.