Skippy Quadcopters plans to sell a standard quadcopter (toy drone) for $70 and a deluxe quadcopter for S100 Skippy purchases the standard quadcopter for $50 and the deluxe quadcopter for $80 Management expects to sell two deluxe quadcopters for every three standard quadcopters. The company's monthly fixed expenses are $20,000. How many of each type of quadcopter must Skippy sell monthly to breakeven? To earn $14,000? First identify the formula to compute the sales in units at various levels of operating income using the contribution margin approach. (Abbreviations used Avg. averago, and CM contribution margin) - Breakeven sales in units