• Bank Of China average operating margin for 2023 was 45.79%, a 10.36% decline from 2022.
• Bank Of China average operating margin for 2022 was 51.08%, a 3.82% decline from 2021.
• Bank Of China average operating margin for 2021 was 53.11%, a 4.1% 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.