What expenses does Rumsey have?What income does rumsey have?

I guess the income is student's money payings. Expenses - in variety way - they might have to buy foods for almost 300people in one day. Lights in building, waters, school bus, teachers who work here, hockey rink, new computers, rebuilding also can be a large amount of expenses. Bookstore also can be the income, it can be a way of earning money.