So "100% more" and "2 times more" both mean "double"? My understanding when I was learning word problems many, many moons ago was that "N times more" means (N+1)*original value. On the other hand "N times as much/many" meant N*original value. Are they teaching it differently these days? Not trying to be cheeky, just concerned that the language has changed without me knowing it.
The phrase "three times less" is frequently used to mean "one third of," but it is ambiguous. I don't think there's much consensus anymore on whether it's acceptable practice or not. I personally hate it, but I've even seen it on word problems from major test makers.
But really in general reporting, there are much more egregious math/science mistakes, like "exponential," where using the wrong phrase leads to a misrepresentation of the facts, not just a misunderstanding of semantics. Another common problem is when talking about probability things. I have heard respectable people say "most people