• American average net profit margin for 2023 was 22.89%, a 11.45% decline from 2022.
• American average net profit margin for 2022 was 25.85%, a 223.13% decline from 2021.
• American average net profit margin for 2021 was 8%, a 225.39% increase from 2020.

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