Quick, is 10,000 good or bad?
As always the answer depends on the context. In the book "Made to Stick" Chip and Dan Heath make this point several times using a variety of examples like movie popcorn.
Usually I'd consider these fighting words, but they are in fact very true. Without providing both context and scale people can't understand a number or statistic. Successful communication of quantitative information depends on relating with the audience in their terms.
Ways to improve understanding:
What was it then and what is it now? "before the ...." or "in the age of ....."
How does it compare to a common task? "faster than a speeding bullet"
What does it mean in everyday terms? "more fat content than 3 hamburgers"
1. Never report numbers without their context.
2. Put data on a scale the audience relates two; usually personal and human.
3. Keep it Simple and Jargon Free