A theater sells tickets for $12, with 300 tickets sold at this price. For every $1 increase in ticket price, 50 fewer tickets are sold. The total revenue, $R(x)$, in dollars, where $x$ is the number of $1 increases in ticket price, is given by the function $R(x)=(12+x)(300-50x)$. Which of the following is the best interpretation of $R(1)=3250$?