• Biogen average ebitda margin for 2023 was 31.04%, a 13.44% decline from 2022.
• Biogen average ebitda margin for 2022 was 35.86%, a 4.95% decline from 2021.
• Biogen average ebitda margin for 2021 was 34.17%, a 32.44% increase from 2020.

Ebitda margin can be defined as earnings before interest, taxes, depreciation and amortization as a portion of total revenue.