• Duke Energy average operating margin for 2023 was 22.53%, a 5.33% increase from 2022.
• Duke Energy average operating margin for 2022 was 21.39%, a 8.69% increase from 2021.
• Duke Energy average operating margin for 2021 was 19.68%, a 11.99% 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.