Example:
For Example if you refer 10 person and they refer 10 person and so on up to 10 levels your income in each levels is:
1: 1$
2: 10$
3: 100$
4: 1 000$
5: 10 000$
6: 100 000$
7: 1 000 000$
8: 10 000 000$
9: 100 000 000$
10: 1 000 000 000$