y quantuly your answer.) P6-5A You are provided with the following information for Najera Inc. for the mon ended Jyme 30, 2017. Najera uses the periodic method for inventory Unit Cost or Date June 1 June 4Purchase June 10 Sale June 11 Sale return June 18 Purchase June 18 Purchase return June 25 Sale June 28 Description Beginning inventory Quantity Selling Price $40 40 135 110 15 70 70 46 46 75 50 10 65 30 Purchase Instructions (a) Calculate (i) ending inventory, (ii) cost of goods sold, (ii) gross profit, and (iv) gross profit rate under each of the following methods. (1) LIFO. (2) FIFO. (3) Average-cost. Compare results for the three cost flow assumptions