• Biogen average net profit margin for 2023 was 21.04%, a 6.86% decline from 2022.
• Biogen average net profit margin for 2022 was 22.59%, a 32.11% decline from 2021.
• Biogen average net profit margin for 2021 was 17.1%, a 53.49% increase from 2020.

Net profit margin can be defined as net Income as a portion of total sales revenue.