• Casella Waste Systems average gross margin for 2023 was 33.79%, a 0.51% increase from 2022.
• Casella Waste Systems average gross margin for 2022 was 33.62%, a 2.15% increase from 2021.
• Casella Waste Systems average gross margin for 2021 was 34.36%, a 5.14% 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.