No specific table or anything, just common sense. If the coach cabin holds 128 and there are 25 seats left, well it is approx. 80% full. You get my drift. If you want to get good numbers, after they tell you the percentage just ask how many seats the coach cabin holds. I never give percentage of authorization and I really hate it when other airlines do. I mean, how the heck should I know what their auth is? Every airline oversells to a different degree. AS, for example, rarely oversells by more than 7 or 8 seats and QX almost never oversells at all. It is VERY rare for QX to oversell by more than 1 and only then if they've had a cancellation somewhere else. But I have seen airlines who oversell by 20 people and I know we do oversell quite a bit in the Mexico market (lots of no shows there).