Many merchants assume that better shipping rates come from higher volume. While volume matters, it is not the only factor carriers consider. In practice, how shipments are structured can be just as important as how many packages are shipped.
In the US, delivery costs vary widely depending on location, delivery type, and route efficiency. A shipment to a dense urban area may cost less per package than one spread across suburban neighborhoods. These differences affect how carriers price their services.
This creates a situation where merchants may be paying more than necessary without realizing it. Without understanding how delivery patterns influence pricing, negotiations tend to focus on surface-level discounts rather than real cost drivers.