The records of XYZ Co. showed the following transactions, in the order given, relating to the major inventory item: 1. Inventory... Units Unit Cost 3,000 $7.80 2. Purchase 9,000 5.40 3. Sale (at $18). 4. Purchase 10,000 3,000 7.80 Complete the following schedule for each independent assumption. Please make sure your final answer(s) are accurate to the nearest whole number. Amounts Cost of Ending Gross Independent Assumptions a. FIFO inventory system... Goods Sold Inventory Profit b. Moving average inventory system