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Pember Inc. is a retailer operating in Edmonton, Alberta. Pember uses the perpetual inventory method. All sales returns from customers result in the goods being returned to inventory. (Assume that the inventory is not damaged.) Assume that there are no credit transactions; all amounts are settled in cash. You are provided with the following information for Pember Inc. for the month of January 2014. Description Ending inventory Purchase Sale Purchase Sale Purchase Sale uantit Date Dec. 31 Jan. 2 Jan. 6 Jan. 9 Jan. 10 Jan. 23 Jan. 30 Unit Cost or Selling Price $30 240 150 270 113 75 150 195 60 36 68 38 72 Calculate average cost for each unit. (Round answers to 3 decimal places, e.g. 5.225.) Jan. 1 Jan. 2 Jan. 6 Jan. 9 Jan. 10 Jan. 23 Jan. 30