• Aon average net profit margin for 2023 was 20.33%, a 22.69% decline from 2022.
• Aon average net profit margin for 2022 was 16.57%, a 22.29% increase from 2021.
• Aon average net profit margin for 2021 was 13.55%, a 16.97% increase from 2020.

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