During 2023, Harmony Co. sold $520,000 of merchandise at marked retail prices. At the end of 2023, the following information was available from its records: At Cost At Retail $127,600 231,240 $256,800 393,600 Beginning inventory Net purchases Assume that in addition to estimating its ending inventory by the retbil method, Harmony Co. also took a physical inventory at the marked selling prices of the inventory items at the end of 2023. Assume further that the total of this physical inventory at marked selling prices was $109,200. a. Determine the amount of this inventory at cost. (Round your intermediate calculations and final answer to 2 decimal places.) Inventory at cost b. Determine Harmony's 2023 inventory shrinkage from breakage, theft, or other causes at retail and at cost. (Round your intermediate calculations and final answers to 2 decimal places.) Estimated inventory that should have been on hand Physical inventory Inventory shrinkage At Cost At Retail