• Air China average net profit margin for 2023 was -27.05%, a 18.52% decline from 2022.
• Air China average net profit margin for 2022 was -33.2%, a 246.92% decline from 2021.
• Air China average net profit margin for 2021 was -9.57%, a 489.02% increase from 2020.

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