If a firm that makes $100 profit per pair of shoes pays LeBron James $2,000,000 to endorse their basketball shoes, then to make the endorsement pay off they must sell at least:
◦ 200,000 more pairs of shoes.
◦ $20,000 more in shoes.
◦ 20,000 more pairs of shoes.
◦ $2,000,000 more in shoes.