pare the perpetual and periodic inventory systems $5-3 Suppose Marks uses the perpetual inventory system to purchase T-shirts on account for $15,000 from an overseas supplier. It cost Marks $1,000 FOB supplier to ship the T-shirts as well as duty and excise fees of $200. Marks was also fined $300 for unloading the inventory in an unauthorized area. 1. Compute the cost of inventory to Marks. 2. Marks pays $500 cash to deliver the goods to three regional retail outlets. How would this cost be recorded? Account for the total purchase cost of inventory