Person A person works with person B who owns a training company. Person A does not get any money for the work he gets except as a commission. If person A gets an interview that leads to a training agreement between another company and person's b company, person A gets 20% of the revenue at least for the first time. Person A also works in preparing ecourses with person B. Most of the content was prepared by person B but person A worked on it as well. Person A gets 10% for about the first 14,000 $ and then 5% for the next 12 months. But he doesn't get anything after that.
Is there anyway to determine whether person A should get more than that or less especially getting some commission after the next 12 months? Please note that person A does not have any other income.