• American average net profit margin for 2023 was 10.35%, a 53.02% decline from 2022.
• American average net profit margin for 2022 was 22.03%, a 175.38% 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.