• GSK average gross margin for 2023 was 71.87%, a 9.86% increase from 2022.
• GSK average gross margin for 2022 was 65.42%, a 1.34% increase from 2021.
• GSK average gross margin for 2021 was 66.31%, a 1.41% 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.