Skippy Scooters plans to sell a motorized standard scooter for $$60$ and a motorized chrome scooter for $$80.$ Skippy Scooters purchases the standard scooter for $$50$ and the chrom scooter for $$55.$ Skippy Scooters expects to sell two chrome scooters for every three standard scooters. Skippy Scooters' monthly fixed expenses are $$16,000.$ How many of each type of scooter must Skippy Scooters sell monthly to break even? To earn $$8,000?$

First, identify the formula to compute the sales in units at various levels of operating income using the contribution margin approach.

Next, compute the weighted$-$average contribution margin per unit. First identify the formula labels, then complete the calculations step by step.

Weighted$-$average contribution margin per unit