Creed Enterprises Inc. tracks the number of units purchased and sold throughout the year, but applies its inventory costing method at the end of the year as if it uses a periodic inventory system. Its accounting records provided the following information for the most recent year ending December 31: Date Transaction Units Unit Cost Unit Price Beginning inventory 1000 $11 Jan 13 Purchase 2600 13 Feb 6 Sale 1200 $23 Purchase 900 Jan 1 Apr 7 14 Apr 10 Returned items purchased Apr 7 100 Jul 5 Sale 2000 26 Oct 22 Purchase 500 17 Required: a) Assume that Creed uses the FIFO inventory costing method. Calculate the following (round to nearest dollar): Cost of goods sold: Ending inventory: b) Assume that Creed uses the weighted average inventory costing method. Calculate the following cround to nearest dollar): Average cost per unit: Cost of goods sold Ending inventory: c) Now, assume that Creed has a perpetual inventory system that tracks both quantity and cost of inventory. Complete the following partial Income statement for the year ending December 31, 2020 (round all amounts to the nearest dollar): c) Now, assume that Creed has a perpetual inventory system that tracks both quantity and cost of inventory. Complete the following partial income statement for the year ending December 31, 2020 (round all amounts to the nearest dollar): Sales revenue Cost of goods sold Gross profit