• Mizuho Financial average gross margin for 2023 was 65.99%, a 14.06% decline from 2022.
• Mizuho Financial average gross margin for 2022 was 76.79%, a 2.73% decline from 2021.
• Mizuho Financial average gross margin for 2021 was 74.75%, a 4.24% increase 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.