• Waste Management average gross margin for 2023 was 37.7%, a 0.35% increase from 2022.
• Waste Management average gross margin for 2022 was 37.57%, a 2.67% increase from 2021.
• Waste Management average gross margin for 2021 was 38.6%, a 0.21% 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.