Answer:
The answer is by charging lower price on remaining three ticket (any ticket price above $0)
Step-by-step explanation:
As company is not giving any refreshment so it not incurring any variable cost. So here sales is equal to contibution and every single dollar revenue generated is a contribtion towards fixed cost and targeted profit. So by decreasing sale price on remaining tickets company will be able to sell them and this sale will result in more profit to the company.