Percentage increases, and the phrase "X% more likely", are usually quite ambiguous. I wish more people would tell you whether they mean absolute or relative increases. E.g., if (numbers made up for example) 0.5% of the general population are delinquent in credit, but 1% of gamblers are delinquent, then you could report that as either a 0.5% increase (absolute) or a 100% increase (relative). Which one people choose often has a lot to do with the impression they're trying to give: are they trying to panic you, or give you actual facts?

And knowing the baseline of a relative increase can matter a lot. If something goes from a 0.001% to a 0.002% chance of happening, that relative 100% increase means very little. If it goes from a 50% chance of happening to a 100% chance, that same relative 100% increase means a lot: it's gone from a coin-flip to a certainty.