Auction opening cost

Tokens x auction required, depend on
auction Base Value (Starts value).

Int	From USD	Up to USD	Tokens
1	0	1000	1
2	1001	10000	2
3	10,001	50,000	3
4	50,001	100,000	4
5	100,001	500,000	5
6	500,001	And more ...	10

Table with token qty calculation.