• Northrop Grumman average gross margin for 2023 was 19.44%, a 6.04% decline from 2022.
• Northrop Grumman average gross margin for 2022 was 20.69%, a 1.03% decline from 2021.
• Northrop Grumman average gross margin for 2021 was 20.48%, a 2.57% increase 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.