New bird in prop firm

Can anyone tell me what is the usual arrangement in prop firm ( trade oil futures) in below areas?
1) what is the usual capital to margin ratio?
2)what% is the profit share?
3) do trader need to contribute money?

And when the trader earn more, how will the capital to margin ratio be increased?

Thanks,
Lam

 

Where are you located. Do you have a track record? What are you looking to gain by prop?