Cox Corporation produces a product with the following costs as of July 1,20 xx X : Material $3 per unit Labour 5 per unit Overhead 3 per unit Assuming Cox sold 31,000 units during the last six months of the year at $16 each, beginning inventory at these costs on July 1 was 3,000 units. From July 1 to December 31,20 XY, Cox produced 30,000 units. These units had a material cost of $4 per unit. The costs for labour and overhead were the same. a. If Cox uses FIFO inventory accounting, what would be the gross profit for the period