• Illumina average return on investment for 2023 was -33.62, a 71.36% decline from 2022.
• Illumina average return on investment for 2022 was -19.62, a 280.33% increase from 2021.
• Illumina average return on investment for 2021 was 10.88, a 19.29% 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.