Cullumber Cupcakes Co. is selling cupcakes for $6 for a box of four. Cullumber has fixed costs equaling $83160 per year, and its accountant has calculated the contribution margin ratio on each box of donuts to be 70%. Based on this information, which of the following statements is correct? Operating profit will be $1023 if 1815 boxes are sold next month. Operating profit will be $693 if 1815 boxes are sold next month. The monthly break-even point is 1733 boxes sold. The monthly break-even point is 1568 boxes sold