• Costco average return on investment for 2023 was 21.37, a 1.79% increase from 2022.
• Costco average return on investment for 2022 was 21.76, a 9.95% decline from 2021.
• Costco average return on investment for 2021 was 19.79, a 13.54% increase 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.