• Westlake average net profit margin for 2024 was 2.53%, a 71.05% increase from 2023.
• Westlake average net profit margin for 2023 was 8.74%, a 48.74% decline from 2022.
• Westlake average net profit margin for 2022 was 17.05%, a 44.98% decline from 2021.

Net profit margin can be defined as net Income as a portion of total sales revenue.