How do I calculate? From previous question..

Suppose the demand for parking is given by the following equation:QD=10,000-500P.At Arturo's school, there are7,000parking spaces for students. For the questions below, give all answers to the nearest whole number.

The university, in order to prevent the shortage issue, is changing from selling parking permits to charging a daily parking fee. Suppose parking spaces were allocated at Arturo's school using the market mechanism. In this case, students would have to pay $ each day to park.