• Lennox average pre-tax profit margin for 2023 was 14.09%, a 8.97% increase from 2022.
• Lennox average pre-tax profit margin for 2022 was 12.93%, a 7.97% increase from 2021.
• Lennox average pre-tax profit margin for 2021 was 14.05%, a 14.13% decline from 2020.

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