Required: (1) Compute total goods available for sale. (3) Assuming that the company uses the periodic inventory system, compute the cost that should be assigned to ending inventory and to cost of goods sold using the weighted-average cost method

The table below summarizes the beginning inventory, purchases, and sales of Psi Company's single product during January. Required: (1) Compute total goods available for sale. (2) Assuming that the company uses the perpetual inventory system, compute the cost that should be assigned to ending inventory and to cost of goods sold using (a) the weighted-average cost method, and (b) the FIFO method. (3) Assuming that the company uses the periodic inventory system, compute the cost that should be assigned to ending inventory and to cost of goods sold using the weighted-average cost method