4) Spooky Times Ltd. (STL) uses a perpetual inventory system. At December 31, 2022, the company's accounting records provided the following information for Product A : Required (60 marks): 1) Prepare a statement of earnings for 2022 through after-tax earnings, showing the detailed computation of cost of sales for the two cases (Assume a tax rate of 30% ): a. Case AFIFO b. Case BMoving weighted average 2) For each case, show the computation of the ending inventory (Hint: set up adjacent columns, one for each case) 3) Which inventory costing method may be preferred for income tax purposes? Explain. 4) Prepare journal entries for transactions (b) through (f), assuming that STL uses FIFO for inventory costing. 5) Prepare journal entries for transactions (b) through ( f ), assuming that STL uses moving weighted average for inventory costing