• Casella Waste Systems average gross margin for 2023 was 33.82%, a 1.11% increase from 2022.
• Casella Waste Systems average gross margin for 2022 was 33.45%, a 2.96% increase from 2021.
• Casella Waste Systems average gross margin for 2021 was 34.47%, a 4.33% 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.