• Quest Diagnostics average operating margin for 2024 was 13.46%, a 5.73% increase from 2023.
• Quest Diagnostics average operating margin for 2023 was 12.73%, a 30.13% increase from 2022.
• Quest Diagnostics average operating margin for 2022 was 18.22%, a 22.63% decline from 2021.

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.