You are analyzing the operating income margins of two leading beverage companies, The Coca-Cola Company and PepsiCo, Inc., for the fiscal year 2023.

Requirements:

1. Coca-Cola reported operating income of $10 billion and net sales revenue of $40 billion for the fiscal year 2023. PepsiCo reported operating income of $12 billion and net sales revenue of $50 billion during the same period.
2. Calculate the operating income margin for both Coca-Cola and PepsiCo.
3. Compare the operating income margins of Coca-Cola and PepsiCo and discuss their relative profitability and operational efficiency.