• West Pharmaceutical Services average return on investment for 2023 was 19.16, a 24.42% decline from 2022.
• West Pharmaceutical Services average return on investment for 2022 was 25.35, a 0.16% decline from 2021.
• West Pharmaceutical Services average return on investment for 2021 was 25.39, a 54.16% decline from 2020.

Roi - return on investment can be defined as an indicator of how profitable a company is relative to its assets invested by shareholders and long-term bond holders. Calculated by dividing a company's operating earnings by its long-term debt and shareholders equity.