After a successful day of selling cars, Mr. Wormwood shares the cost of the three cars and the amounts at which they were sold. He asks his son for the day's total profit, and Matilda answers quickly and without hesitation.
Zac is boating on the ocean and watching a news program, where he learns that certain fish populations are getting smaller in the ocean. He decides to catch the remainder of the fish in the ocean so the world will have to buy all of them from him.
Max is looking to make a large profit for his investment firm. He tells his employees to sell bonds when the price is high and to buy when the price is low. They are selling at such a large volume that they are influencing the price of the bond.
Zeros are disappearing across town, and Olive and Otto visit Polly for some hot chocolate and help. Polly shows bar graphs of her profit for each day of the week to the two agents, and she notes that her profit for the current day is much lower than usual. Olive points out that Polly's lower price is contributing to her lower profit and explains to Otto why zeros disappearing is a problem. In her explanation, Olive illustrates the difference between 1, 10, 100, and 1,000 marshmallows.