• Chunghwa Telecom average pre-tax profit margin for 2023 was 21.47%, a 2.05% decline from 2022.
• Chunghwa Telecom average pre-tax profit margin for 2022 was 21.92%, a 3.06% decline from 2021.
• Chunghwa Telecom average pre-tax profit margin for 2021 was 21.27%, a 2.7% increase from 2020.

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