QUESTION 4 Incorrect0.00 points out of 8.00Flag question Calculating Weighted-Average Cost Inventory Values The Mann Corporation began operations in 2011. Information relating to the company's purchases of inventory and sales of products for 2011 and 2012 is presented below 2011 March 1 June 1 September 1 Purchase 100 units November 1 Sold Purchase 200 units$40 per unit 120 units$100 per unit $56 per unit 130 units$100 per unit Sold 2012 March 1 June 1 September 1 Purchase 100 units November 1 Sold Purchase 100 units64 per unit 80 units $120 per unit $72 per unit 100 units$140 per unit Sold Calculate the weighted-average cost of goods sold and ending inventory for 2011 and 2012 assuming use of (a) the periodic method and (b) the perpetual method a. Weighted-Average Periodic. Do not round your cost per unit. Do not round until your final answer Round your answers to the nearest whole number 2011 Cost of goods sold Ending inventory $