Maintenance ratio

If you get a maintenance ratio less than a 100%, about how much is the minimum?

Minimum what? The minimum ratio or percentage?

you shouldn’t have a maintenance ratio of pess than 100% or the condition will slowly deterioate over time.

just to complete the sentence: … which will cancel flights automatically if the condition is at a certain threshold (guess around 50%).

thx, voeni, you are absolutely right. they will be cancelled when reaching 50%