• Robert Half average gross margin for 2023 was 41.15%, a 3.49% decline from 2022.
• Robert Half average gross margin for 2022 was 42.64%, a 5.02% decline from 2021.
• Robert Half average gross margin for 2021 was 40.6%, a 0.72% 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.