• Illumina average operating margin for 2023 was -58.65%, a 18.2% increase from 2022.
• Illumina average operating margin for 2022 was -49.62%, a 753.75% increase from 2021.
• Illumina average operating margin for 2021 was 7.59%, a 67.34% 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.