Proportion of three major expenses of trading companies

Procurement costs account for 60% to 80%, logistics costs account for 5% to 20%, and sales expenses account for 5% to 20%. Purchasing cost is the cost of purchasing goods by trading companies, accounting for 60% to 80% of sales. Logistics costs include transportation, warehousing, insurance and other expenses, accounting for 5% to 20% of sales. Sales expenses include advertising, promotion, sales staff salaries and other expenses, accounting for 5% to 20% of sales.