Yes I did that I have wagered the same amount 553BTC sir
[/quote]

So,

Wagering 553 BTC gives 553 BTC / 500,000 sat = 110,600 GT
So, were bought                                               155,682 GT [Cost: 38.9205 BTC]
                                                                     -------------
                                                   sum                  266,282 GT
                                                   
So, if wagered 553 BTC, eventually won 38.9 BTC and used them to buy 155,682 GT with the objective of a prize of 7 BTC.

Really?