• Sumitomo average operating margin for 2023 was 4.9%, a 5.77% increase from 2022.
• Sumitomo average operating margin for 2022 was 5.2%, a 3.79% decline from 2021.
• Sumitomo average operating margin for 2021 was 5.01%, a 2.04% 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.