(Bonus + Profit) x 0.07 = number of lots (N)
Example if the profit is $10:
You should calculate in cents. Trader has a bonus 5000 USC ($50), profit 1000 USC ($10) = 6000 ($60).
6000 x 0.07 = 420 lots.
After reaching 420 lots all funds on a bonus account become available for the withdrawal.