Part Wabda Co. incurred the following transactions during the month of January 2019. Jau 1: Beginning Inventory (50 units 10 per unit) January 10: Purchased 40 units, 11 per unit Janary 15: Sold 60 units @ 15 per unit January 22: Purchase 60 units 12 per unit January 3]: Sold 70 units 16 per unit Required: Use "FIFO" methods and calculate the following: (5 marks) Calculate cost of ending inventory on Vatury 31st2019 Calculate cost of goods sold for the period ending on Sammy 31, 2019 Note: You need to make a table showing the following columns to show your working Date Purchases Cost of goods sold Inventory Balance PartB What is the consistency principle as per financial reporting standards and why a company should follow this plac iple? (muck)