Convex Mechanical Supplies produces a product with the following costs as of July 1,201 : Beginning inventory at these costs on July 1 was 7,300 units. From July 1 to December 1 , Convex produced 19,000 units. These units had a material cost of $10 per unit. The costs for labor and overhead were the same. Convex uses FIFO inventory accounting o. Assuming that Convex sold 21,000 units dunng the last six months of the year at $20each, what would gross profit be