Your trading profit is not what you keep. In between sit the cost of challenges, prop-firm fees, your tools and subscriptions. Net profit subtracts them to show the real number: trading gross minus costs.
What to log
The cost of each challenge or funded account (and whether it was refunded on passing).
Firm fees or charges.
Tools, data, VPS and subscriptions.
With numbers
Example: you made $3,000 trading but paid three $200 challenges and a $30 VPS. Your real net is $3,000 − $630 = $2,370. That is what actually came in.
ROI per prop firm
Because you log what you spent with each firm and how much you made on its accounts, Onyx computes the return per firm: which ones pay off and which only eat challenges.
Net profit is on paid plans. It is for your own tracking only: Onyx does not charge per expense or share these numbers.
