Actually, Scientist, you cannot just multiply out 150,000 x 0.01 to figure out how many people won't recieve a drop at the 99% chance mark.
Since whether you get a recipe drop is independent of me getting a recipe drop, it is possible that everyone won't get one...or on the otherhand possible that everyone will.
You have to remember that "99% of people will find a drop by point X" and "A single person has a 99% chance of finding a drop by point X" are entirely different statements.
It doesn't really make a tremendous difference when the number 99% is being used, since it is so close to 100%, but its the same sort of logic that gets people in trouble when they think "Yes! I have +20% defense! I'll last 20% longer in combat!"
