Calculate a cost of goods sold, b) ending inventory, and c) gross margin for A76 Company, considering the following transactions under three different cost allocation methods and using perpetual inventory updating. Provide calculations for weighted average (AVG), Round "Unit Cost" answers to 2 decimal places and other answers to the nearest dollar amount. Number of Units Unit Cost Sales Beginning Inventory $140 260 Sold 160 $180 500 143 Purchased Sold 400 182 Purchased 420 150 Sold 370 214 Ending Inventory 250 AVG (perpetual) Inventory Cost of Goods Purchased Cost of Goods Sold #units Unit Cost Total Cost #units Unit Cost Total Cost