• Costco average ebitda margin for 2023 was 4.22%, a 2.09% increase from 2022.
• Costco average ebitda margin for 2022 was 4.31%, a 0% decline from 2021.
• Costco average ebitda margin for 2021 was 4.31%, a 2.86% decline from 2020.

Ebitda margin can be defined as earnings before interest, taxes, depreciation and amortization as a portion of total revenue.