The following information is given for a company's inventory during July: Units Cost July 1 Inventory 200 $3.20 July 10 Purchase 100 3.25 July 15 Purchase 150 3.35 July 20 Purchase 200 3.30 July 30 Purchase 250 3.50 During July 450 units were sold at a price of $10.00. Required: Calculate the gross profit under the following methods: (6 marks) 1)Inventory is calculated using the FIFO method. 2) Inventory is calculated using the LIFO method. 3) Inventory is calculated using the Average Cost method. 4) Using the information from the question above, which method do you think would not be allowed by Revenue Canada for tax purposes. Explain your answer. (2 marks)