• Adecco SA average return on investment for 2023 was 4.82, a 29.74% decline from 2022.
• Adecco SA average return on investment for 2022 was 6.86, a 27.48% decline from 2021.
• Adecco SA average return on investment for 2021 was 9.46, a 639.06% 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.