Composition of logistics cost

Logistics costs in the circulation field generally include inventory/transportation costs, transportation costs, freight forwarding fees (owner's fees) and management fees, among which, inventory/transportation costs include interest, warehousing, taxes, depreciation, damage, labor and insurance fees; Transportation cost: freight (road, railway, water transport, air transport, pipeline); Freight forwarding fee (owner's fee); Management cost: Ax (inventory cost+transportation cost, a is a constant, and the value range depends on the specific situation).