• Ono Pharmaceutical average operating margin for 2023 was 35.05%, a 4.91% decline from 2022.
• Ono Pharmaceutical average operating margin for 2022 was 33.41%, a 8.4% increase from 2021.
• Ono Pharmaceutical average operating margin for 2021 was 30.82%, a 9.21% 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.