• Amgen average price/book ratio for 2023 was 20.42, a 66.75% increase from 2022.
• Amgen average price/book ratio for 2022 was 61.42, a 316.97% decline from 2021.
• Amgen average price/book ratio for 2021 was 14.73, a 26.76% increase from 2020.

Price/book ratio can be defined as