The following inventory was available for sale during the year for Tower Tools: Beginning inventory 10 units at $160 First purchase ..... 15 units at $220 Second purchase 30 units at $280 Third purchase 20 units at $260 Tower Tools has 25 units on hand at the end of the year. What is the dollar amount of inventory at the end of the year according to the frutin, first-out method $11,900 $6,300 $6,600 $7,800 Llewenan