The salary for this type of position reflects the lack of formal education required. The average demonstrator and product promoter in the United States makes about $24,500. The lower 10% make about $18,900 while the upper 10% make about $44,600. Of course, your salary will depend on a number of factors. It depends on your education, the complexity of the product or service you’re promoting, where you live and the institution that you work for.