What is the woman planning?

M: Good morning, Cindy. What are you doing?
W: I’m working out the details for the coming welcome party. It’s time to do it now.
M: Right. Let’s talk about the place first.
W: The dance hall of our school is a good place. Then we can order food from a restaurant and have the welcome party in the dance hall. The next one is the date. How about September 12? It’s Saturday.
M: That’s fine.
W: Let’s think about invitations.
M: I think we should invite dean, instructors, professors, and all new students. There will be about 50 people to come. So we will send out invitation cards this weekend.
W: Right. Now let’s count the cost.
M: How about 10 dollars for each person?
W: Paul, don’t forget I need some money to prepare masks, colored lights and gifts.
M: Then 15 dollars?
W: At least. So the total cost is about 750 dollars.