A company estimates that it can sell 4000 4000 units each week of its product if it prices each unit at $ 25 $ 25 . However, its weekly number of sales will increase by 100 100 units for each 0.10 0.10 decrease in price. The company has fixed costs of $ 1500 $ 1500 . The cost to make each unit is $ 1.20 $ 1.20 . Find the level of production that maximizes the company's profit if the company must produce and sell between and including 3000 3000 and 16000 16000 . What is the maximum profit?