• Lennox average pre-tax profit margin for 2023 was 14.17%, a 11.22% increase from 2022.
• Lennox average pre-tax profit margin for 2022 was 12.74%, a 9.19% increase from 2021.
• Lennox average pre-tax profit margin for 2021 was 14.03%, a 14.25% decline from 2020.

Pre-tax profit margin can be defined as earnings before taxes as a portion of total revenue.