How do the farmers know how much money they should get from the COE auction?

Everything about the Cup of Excellence is open and transparent and the farmers usually watch the auction so they know both the buyer and the auction price. There is also a page on the website for everyone to see the commission from the COE auction which will be paid to the organizers. The vast majority of the auction price goes directly to the winning farmer. The National Winner prices are also online during the auction process and farmers are aware of the price paid and who bought the coffee.