• Corning average pre-tax profit margin for 2023 was 7.23%, a 54.47% decline from 2022.
• Corning average pre-tax profit margin for 2022 was 15.88%, a 2.12% decline from 2021.
• Corning average pre-tax profit margin for 2021 was 15.55%, a 293.67% increase from 2020.

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