• Biogen average price to free cash flow ratio for 2023 was 27.34, a 77.65% decline from 2022.
• Biogen average price to free cash flow ratio for 2022 was 15.39, a 6.73% increase from 2021.
• Biogen average price to free cash flow ratio for 2021 was 16.5, a 94.35% decline from 2020.

Price to free cash flow ratio can be defined as