• Astellas Pharma average operating margin for 2023 was 12.9%, a 17.68% decline from 2022.
• Astellas Pharma average operating margin for 2022 was 15.67%, a 14.51% decline from 2021.
• Astellas Pharma average operating margin for 2021 was 18.33%, a 3.37% 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.