Question #1 Inventory 15 marks 30 minutes Pettersson Company opened a new store in February this year. During the first year of operations, the company made the following purchases and sales: Date Feb. 7 Apr. 12 July. 18 Oct. 26 Purchases Units Per Unit Cost 35 $210 20 $230 20 $250 $320 Date Apr 30 Nov. 12 Sales Units 40 50 Per Unit Price $520 $545 Instructions (a) Calculate the cost of goods available for sale and the number of units of ending inventory. (2 marks) (b) Assume Pettersson Company uses weighted average periodic. Calculate the cost of ending inventory, cost of the goods sold, and gross profit. (3 marks) (c) Assume Pettersson Company uses weighted moving average perpetual. Calculate the cost of ending inventory, cost of the goods sold, and gross profit. (5 marks) (d) Assume Pettersson Company uses first in first out perpetual Calculate the cost of ending inventory, cost of the goods sold, and gross profit