• Southern average operating margin for 2023 was 19.14%, a 13.25% increase from 2022.
• Southern average operating margin for 2022 was 16.9%, a 19.56% increase from 2021.
• Southern average operating margin for 2021 was 21.01%, a 14% 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.