• Shell average operating margin for 2023 was 14.8%, a 8.59% decline from 2022.
• Shell average operating margin for 2022 was 16.19%, a 322.72% decline from 2021.
• Shell average operating margin for 2021 was 3.83%, a 196.47% 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.