Packaging Material Cost + Shipping Cost Together This is an advanced optimization. Scenario: Large Box Packaging cost = $2 Shipping = $30 Total = $32 Small Custom Box Packaging cost = $4 Shipping = $22 Total = $26 Even though the small box is more expensive in packaging ($4 vs $2), the total cost is lower ($26 vs $32). Important lesson: Don’t look only at shipping cost. Packaging cost + shipping cost = total fulfillment cost.