• E.ON SE average operating margin for 2023 was 0.54%, a 87.89% increase from 2022.
• E.ON SE average operating margin for 2022 was 4.46%, a 43.18% decline from 2021.
• E.ON SE average operating margin for 2021 was 7.85%, a 124.93% 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.