. Ch 9 Problem Set B Problem 9-1 Part B The company uses the perpetual inventory method. It began the month of March with 100 units of inventory, at a unit cost of $55. Purchases during March March 5, 60 units at $60 each. March 18, 200 units at $65 each March 29, 40 units at $75 each. Sales during March March 12, 60 units. March 25, 210 units. All units were sold to customer for $100 each.|| 1. Use the following format to set up this inventory costing problem, as shown in Video #2. Date Units Date Inventory Cost per Total Cost Unit 55 Units Total Cost Beg Balance 100 Units Cost Beginning Balance + Purchases Goods Available for Sale - Sold Ending Balance 2. Use the moving weighted average method to calculate the cost of goods sold for each sale, the total cost of goods sold for the month, and ending inventory. 3. Assuming that the March 12 sale came from beginning inventory, and the March 25 sale was comprised of 25 units from beginning inventory, all 60 units of the March 5 purchase, and the remainder from the March 18 purchase, use specific identification to the cost of goods sold for each sale, the total cost of goods sold for the month, and ending inventory