• China Construction Bank average operating margin for 2020 was 33.28%, a 6.09% decline from 2019.
• China Construction Bank average operating margin for 2019 was 35.44%, a 3.49% decline from 2018.
• China Construction Bank average operating margin for 2018 was 36.72%, a 15.22% decline from 2017.

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.