• Iron Mountain average operating margin for 2023 was 18.5%, a 5.76% decline from 2022.
• Iron Mountain average operating margin for 2022 was 19.63%, a 15.93% decline from 2021.
• Iron Mountain average operating margin for 2021 was 23.35%, a 25.94% 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.