Could you please also include working notes

Broadhead Company uses a periodic inventory system. At the end of the annual accounting period, December 31 of the current year, the accounting records provided the following information for product 2: Units 3,000 Unit Cost $ 9 Inventory, December 31, prior year For the current year: Purchase, April 11 Purchase, June 1 Sales ($50 each) Operating expenses (excluding income tax expense) 9,000 7,000 10,000 10 15 $195,000 Required: 1. Prepare a separate income statement through pretax income that details cost of goods sold for (a) Case A: FIFO and (b) Case B:LIFO. BROADHEAD COMPANY Income Statement For the Year Ended December 31, current year Case A Case B LIFO FIFO Sales revenue Cost of goods sold: Beginning inventory Purchases Goods available for sale 0 0 Ending inventory Cost of goods sold Gross profit Operating expenses Pretax income 2. Compute the difference between the pretax income and the ending inventory amount for the two cases. Comparison of Amounts Case A Case B FIFO LIFO Difference Pretax income Ending inventory