ABC Company manufactured 7,500 units of their latest medical devices during September of 2020. Furthermore, ABC Company reported sales of 7,100 units in September of 2020 at a selling price of $682 per unit. Cost of goods sold was reported at $317 per unit. Variable selling expenses were $44 per unit and variable administrative expenses were $22 per unit. The total fixed selling expenses were $157,200 and the total administrative expenses were $338,000. Compute the contribution margin for September