15% still available for the first week of your investment.
I think 10% or 15% a week very little, doing trade i get a profit of 25% for days sometimes less often, what I'm trying to say is that person risks a lot for a profit of 10% per week.
What is your weekly profit?
Say you invested 0.01btc, how much profit would you make?
It is impossible to say. Sports betting is not something where you can say for certain you make these and these profits. Some weeks I make less, some weeks more.
I can only say I can meet my investors profits (even if I had to pay out of my own pocket sometimes if it should come to that)
It is impossible to give more %. If you want I create a ponzi I can do that, just kidding

To give more % that I already offer in the long term I would have to take huge risks, and I am not doing that.
What I can offer is a steady investment, I can not and will never offer more %, that would lead to bankruptcy.
Just honest words.