Payout projection
A profit split only matters against a realistic monthly return and the number of payouts you will actually clear in a year.
A consistent 3–5% a month is already a strong result on a funded account.
Use the figure from the true cost calculator, not the advertised fee.
Monthly return applied to the account size, multiplied by the profit split, over the number of months you expect to hold the account. It assumes you keep the account for the whole period — the point of the calculation is to show how much of the headline split survives a realistic return, not to predict that you will earn it.