Suppose a monopoly firm produces a medical device and can se…

Suppose a monopoly firm produces a medical device and can sell 15 items per month at a price of $2,000 each. In order to increase sales by one item per month, the monopolist lowers the price of its medical device by $100 to $1,900. The marginal revenue of the 16th item is: (Enter your answer as a numerical value without any dollar sign).