Talk:Challenge difficulty

The percentage description do not seem to make sense. The more people who can find a cache the lower the difficulty should go. The formula shown here has it increasing. I suspect it is people who do not qualify.

Consider the case where 100% of cachers in the region, 100% in the country and 100% in the world all qualify. This would be an easy challenge. But by the example on the page, this would have a high score.