Last year, BruceCo sold 1000 coffee cups for $10 each. This year, the company is planning on selling 1500 coffee cups. In order to cover the additional investment they will charge $10.50 for the first 500 cups, $10.25 for the second 500 cups and $10 for the last 500. Each cup costs $4.70 to produce. What is the average profit if they sell all 1500 cups?