• POSCO average operating margin for 2023 was 3.29%, a 63.65% decline from 2022.
• POSCO average operating margin for 2022 was 9.05%, a 1.91% decline from 2021.
• POSCO average operating margin for 2021 was 8.88%, a 169.91% increase from 2020.

Operating margin can be defined as operating margin measurement of what proportion of a company's revenue is left over after paying for variable costs of production such as wages, raw materials, etc.