• Bank Of China average pre-tax profit margin for 2023 was 33.33%, a 6.69% decline from 2022.
• Bank Of China average pre-tax profit margin for 2022 was 35.72%, a 0.82% decline from 2021.
• Bank Of China average pre-tax profit margin for 2021 was 35.43%, a 1.99% increase from 2020.

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