• Martin Marietta Materials average operating margin for 2023 was 21.96%, a 19.61% increase from 2022.
• Martin Marietta Materials average operating margin for 2022 was 18.36%, a 9.69% increase from 2021.
• Martin Marietta Materials average operating margin for 2021 was 20.33%, a 3.04% decline 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.