Inventory Costing Methods with a Periodic System Busby Corp. began the year with 75 units of inventory that it paid $2 each to acquire. During the year, it purchased an additional 100 units for $3 each. Busby sold 150 units during the year. a. Compute cost of goods sold and ending inventory assuming Busby uses FIFO. Cost of goods sold $ Ending inventory $ b. Compute cost of goods sold and ending inventory assuming Busby uses LIFO. Cost of goods sold $ Ending inventory