• Chiba Bank average operating margin for 2023 was 40.28%, a 0% decline from 2022.
• Chiba Bank average operating margin for 2022 was 40.28%, a 0.42% decline from 2021.
• Chiba Bank average operating margin for 2021 was 40.11%, a 3.72% 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.