Pay with percent of profits

I think C2 used to offer the option of charging a percentage of each profitable trade. The amount each person would pay would depend on their trading size. Did this ever exist, and if so, I’m curious about what caused the change.

Also, the design changes over the last few years are really great.

Pay per profitable trade a fixed amount yes they used to have that option but not based on % though .

Ok, thank you for letting me know.