• Ameren average net profit margin for 2023 was 14.24%, a 0.07% increase from 2022.
• Ameren average net profit margin for 2022 was 14.23%, a 9.54% increase from 2021.
• Ameren average net profit margin for 2021 was 15.73%, a 8.86% decline from 2020.

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