When a new person joins a league, they don't always start at 0% gain. I've seen this happen at least three times (and notice mostly because it's usually someone leaping to the top--might happen a lot more often). Below is an example from today. You'll note "lhayes37" joined sometime yesterday, but shows up with an impossibly high gain. His "League Gain" of 0.32% should be equal to "Yest Gain", but instead it's something higher. Only the guy who wrote the database can guess why. . .
League Standings
| Rank | Name | Flag | Joined | Net Worth | Yest Gain | League Gain |
|---|
 |
1 |
Rocket123 |
Creatoratus |
2011-03-26 |
H$466,572,072 |
0.82% |
1.74% |
 |
2 |
lhayes37 |
-- |
2011-04-03 |
H$1,014,212,916 |
0.34% |
0.93% |
 |
3 |
Abraxas |
Not PVL, but similar 500M Club |
2011-03-27 |
H$1,106,152,155 |
0.32% |
0.79% |