• General Motors average gross margin for 2023 was 22.55%, a 71.88% decline from 2022.
• General Motors average gross margin for 2022 was 13.12%, a 7.41% increase from 2021.
• General Motors average gross margin for 2021 was 14.17%, a 50.74% decline from 2020.

Gross margin can be defined as a company's total sales revenue minus its cost of goods sold, divided by the total sales revenue, expressed as a percentage.