i am just wondering if in cases like this where the passage states "over 25%" do we take that to mean a number in a close proximation to 25% or can this mean from 25% to potentially 100%, the same way a "most" in LSAT means 50% but potentially up to 100%?

As in, more than 25 percent of people older than 65 being malnourished can logically mean 26%, 40%, 75%, or even 99%?