Incorporating numbers and facts into headlines and description text can add a sense of authority to your ad, which can help improve relevancy between you and your target audience.
Who's done it well
See who’s doing this well in travel.
Stats and figures can be a sure-fire way of getting people to sit up and take notice. If you have the numbers on your side, use them within your ad creative, and don’t be afraid to use facts, percentage figures and stats as a differentiator vs. the competition.