Inventory Cost With Discounts And Returns

Marie orders 30 laptops for her computer shop at a list price of $2,000 each. The supplier provides a 10% trade discount for purchasing five or more laptops. The laptops are purchased on account with credit terms of 2%, net 15. Two of the laptops are defective and are returned. The transportation cost for the shipment is $25. What is the total cost of the purchased inventory if Marie pays the invoice within five days?