• Duolingo average operating margin for 2023 was -9.34%, a 54.08% decline from 2022.
• Duolingo average operating margin for 2022 was -20.34%, a 9.41% decline from 2021.
• Duolingo average operating margin for 2021 was -18.59%, a 87.02% increase 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.