• CSX average gross margin for 2023 was 69.02%, a 0.75% increase from 2022.
• CSX average gross margin for 2022 was 69.54%, a 6.52% decline from 2021.
• CSX average gross margin for 2021 was 74.39%, a 0.92% 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.