This should come as not a surprise considering that they are generally responsible for approximately 50% of a dealership's gross revenue. What is a note in finance. 80% of the financing supervisor's wage is available in the kind of commissions on the products they sell, so you can guarantee they're going to be highly reliable salesperson - and high pressure as well. They are easily the most unsafe person you will experience at a dealership. They are trained to suck money out of your pockets…