Calculate ending inventory, cost of goods sold, gross profit, and gross profit rate under periodic method; compare results LO 2) You are provided with the following information for Najera Inc. for the month ended June 30, 2019. Najera uses the periodic method for inventory DatDescriptionQuantty Unt Cost or Sellng Price June Beginning inventory June 4Purchase June 10 Sale une Sale return June 18 Purchase June 18 Purchase return June 25 Sale June 28 Purchase 40 135 110 15 $40 70 70 46 46 75 50 10 65 30 (a) Calculate (i) ending inventory, (i) cost of goods sold, (i) gross profit, and (iv) gross profit rate under each of the following methods. 1. LIFO 2. FIFO 3. Average-cost. (iii) Gross profit: LIFO FIFO Average $4,414.60 Compare results for the three cost flow assumptions. $4,215 $4,645 (b)