• Littelfuse average pre-tax profit margin for 2023 was 15.4%, a 11.8% decline from 2022.
• Littelfuse average pre-tax profit margin for 2022 was 17.46%, a 8.45% decline from 2021.
• Littelfuse average pre-tax profit margin for 2021 was 16.1%, a 75.96% increase from 2020.

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