• Woori Bank average gross margin for 2023 was 53.47%, a 24.9% decline from 2022.
• Woori Bank average gross margin for 2022 was 71.2%, a 2.79% decline from 2021.
• Woori Bank average gross margin for 2021 was 73.24%, a 12.61% decline from 2020.

Gross margin can be defined as a company's total sales revenue minus its cost of goods sold, divided by the total sales revenue, expressed as a percentage.