• Unum Group average operating margin for 2023 was 14.55%, a 8.58% decline from 2022.
• Unum Group average operating margin for 2022 was 13.4%, a 68.34% increase from 2021.
• Unum Group average operating margin for 2021 was 7.96%, a 16.47% 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.