Consider a relatively bulky item, say, a package of paper towel. Probably takes up about a cubic foot of volume, which is 0.027 cubic meters.
Suppose you drive that into NYC in a very small van, say a Ford Transit. A quick google tells me that has a cargo capacity of 10 cubic meters. The $15 toll amortized over 370 packages would add an additional cost of 4c per package.
This is the most extreme case I could think of off the top of my head. I believe most deliveries use vans with a much larger cargo capacity than a Transit.
Suppose you drive that into NYC in a very small van, say a Ford Transit. A quick google tells me that has a cargo capacity of 10 cubic meters. The $15 toll amortized over 370 packages would add an additional cost of 4c per package.
This is the most extreme case I could think of off the top of my head. I believe most deliveries use vans with a much larger cargo capacity than a Transit.