• Lennox average net profit margin for 2024 was 13.74%, a 22.02% increase from 2023.
• Lennox average net profit margin for 2023 was 11.26%, a 5.53% increase from 2022.
• Lennox average net profit margin for 2022 was 10.67%, a 7.46% increase from 2021.

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