• Kirby average net profit margin for 2023 was 6.13%, a 344.22% increase from 2022.
• Kirby average net profit margin for 2022 was -2.51%, a 36.29% decline from 2021.
• Kirby average net profit margin for 2021 was -3.94%, a 64.95% decline from 2020.

Net profit margin can be defined as net Income as a portion of total sales revenue.