Caption Crossrrence Entry Footnote Show Footnotes Oration. Bibliography Citations & Bibliography Citation Huthentic Sati Index The F. Cadieux Supplies began December 2019 with 300 units of inventory at a cost of per unit $90 During December the business made the following purchases: . December 4:430 units at $91 . December 15:190 units at $92 . December 20:420 units at $93 December 28: 426 units at $92 The store uses the periodic inventory system and the physical count at December 31 indicates that 450 units of inventory are on hand I REQUIRED: 1. Calculate the cost of goods available for sale during December 2. Determine the cost of ending inventory under the PFO method 3. Calculate the cost of goods sold during the mantis 1. Assume sales price is $ 200 per unit compute the grass margin for december 1. COST OF GOODS AVAILABE FOR SALE ITEM QUANTITY COST PER UNIT TOTAL COST 100- Ward 1.405 ng Canada se w