• Westlake average ebitda margin for 2023 was 19.94%, a 33.49% decline from 2022.
• Westlake average ebitda margin for 2022 was 29.98%, a 19.44% decline from 2021.
• Westlake average ebitda margin for 2021 was 25.1%, a 54.84% increase from 2020.

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