• NiSource average net profit margin for 2023 was 11.39%, a 8.51% increase from 2022.
• NiSource average net profit margin for 2022 was 12.45%, a 77.1% decline from 2021.
• NiSource average net profit margin for 2021 was 7.03%, a 544.94% increase from 2020.

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