• National Bank Of Canada average operating margin for 2023 was 20.76%, a 41.47% decline from 2022.
• National Bank Of Canada average operating margin for 2022 was 35.47%, a 11.68% decline from 2021.
• National Bank Of Canada average operating margin for 2021 was 31.76%, a 41.47% 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.