• Merck average return on equity for 2023 was 11.14, a 20.77% decline from 2022.
• Merck average return on equity for 2022 was 14.06, a 1.54% decline from 2021.
• Merck average return on equity for 2021 was 14.28, a 49.84% decline from 2020.

Roe - return on equity can be defined as the amount of net income returned as a percentage of shareholders equity. Return on equity measures a corporation's profitability by revealing how much profit a company generates with the money shareholders have invested.