• Southern average net profit margin for 2023 was 12.5%, a 9.94% increase from 2022.
• Southern average net profit margin for 2022 was 11.37%, a 15.78% increase from 2021.
• Southern average net profit margin for 2021 was 13.5%, a 15.04% decline from 2020.

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