rank 1- $1000
rank 2-$10,000
rank 3-$50,000
rank 4-$100,000
rank 5-$250,000
rank 6-$500,000
rank 7-$750,000
rank 8-$1,000,000

then after that its really hard

rank 9-$2,500,000
thats more than twice as much as rank 8
but wait till level 10

rank 10-5,000,000