A company had inventory of 9 units at a cost of $10 each on November 1. On November 2, they purchased 9 units at $23 each. On November 6 they purchased 7 units at $22 each. On November 8, they sold 18 units for $53 each. Using the LIFO perpetual inventory method, what was the cost of the 18 units sold? O $406. O $333 O $444 O $381 O $477