• WEC Energy average operating margin for 2023 was 20.55%, a 0.05% increase from 2022.
• WEC Energy average operating margin for 2022 was 20.56%, a 4.59% decline from 2021.
• WEC Energy average operating margin for 2021 was 21.55%, a 6.3% 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.