Helpful Hardware sells windows (80% of sales) and doors (20% of sales). The selling price of each window is $560 and of each door is $1160. The variable cost of each window is $370 and of each door is $860 Fixed costs are $1704,480, The number of units of each product that will be sold at the break-even point is: Multiple Choice O Windows, 6,432 units; Doors, 1,608 units. Windows, 8,040 units; Doors, 8,040 units. O Windows, 8,040 units; Doors, O units. O Windows, O units; Doors, 8,040 units. Windows 1,608 units; Doors, 6,432 units