• Amgen average price/book ratio for 2023 was 20.59, a 66.75% increase from 2022.
• Amgen average price/book ratio for 2022 was 61.92, a 316.97% decline from 2021.
• Amgen average price/book ratio for 2021 was 14.85, a 26.81% increase from 2020.

Price/book ratio can be defined as