• Kirby average operating margin for 2023 was 9.32%, a 876.67% increase from 2022.
• Kirby average operating margin for 2022 was -1.2%, a 68.59% decline from 2021.
• Kirby average operating margin for 2021 was -3.82%, a 76.65% decline from 2020.

Operating margin can be defined as operating margin measurement of what proportion of a company's revenue is left over after paying for variable costs of production such as wages, raw materials, etc.