Contour Company uses a perpetual inventory system. It entered into the following calendar-year purchases and sales transactions.

January 1 Beginning inventory 600 units @ $45 per unit

February 10 Purchase 400 units @ $42 per unit

March 13 Purchase 200 units @ $27 per unit

March 15 Sales 800 units @ $75 per unit

August 21 Purchase 100 units @ $50 per unit

September 5 Purchase 500 units @ $46 per unit

September 10 Sales 600 units @ $75 per unit Totals 1,800 units 1,400 units

Required: Compute cost of goods available for sale and the number of units available for sale.

Compute the number of units in ending inventory. Compute the cost assigned to ending inventory using (a) FIFO, (b) LIFO, (c) weighted average, and (d) specific identification. (For specific identification, units sold consist of 600 units from beginning inventory, 300 from the February 10 purchase, 200 from the March 13 purchase, 50 from the August 21 purchase, and 250 from the September 5 purchase.)