• Merck average pre-tax profit margin for 2023 was 17.52%, a 12.4% decline from 2022.
• Merck average pre-tax profit margin for 2022 was 20%, a 7.82% decline from 2021.
• Merck average pre-tax profit margin for 2021 was 18.55%, a 38.85% increase from 2020.

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