On September 22, 2021, a flood destroyed the entire merchandise inventory on hand in a warehouse owned by the Rocklin Sporting Goods Company. The following information is available from the records of the company's periodic inventory system: Inventory, January 1, 2021 Net purchases, January 1 through September 22 Net sales, January 1 through September 22 Gross profit ratio $140,000 370,000 550,000 25%