How many grocery stores are required in a metropolitan city?

When tackling this guesstimate question, start by defining the metropolitan city you’re considering and its population size. Estimate the average number of grocery store visits per person per week, and multiply that by the population to get total visits. Then, determine the average number of customers a grocery store can serve in a week, factoring in store size and operating hours. Finally, divide the total weekly visits by the average store capacity to arrive at an estimated number of grocery stores needed. Be prepared to discuss any assumptions you make and how they impact your final estimate.