Final answer:
To earn a monthly operating income of $30,000 with a selling price of $70 per unit, variable costs at 30% of the selling price, and fixed costs of $12,000, Dusty Rhodes Associates needs a dollar volume of sales per month equal to $60,000.
Step-by-step explanation:
To determine the dollar volume of sales per month required for Dusty Rhodes Associates to earn a monthly operating income of $30,000 with a selling price of $70 per unit, variable costs amounting to 30% of the selling price, and fixed costs of $12,000 per month, we will use the contribution margin approach.
The contribution margin per unit is the selling price minus the variable cost per unit. In this case, the variable cost per unit is 30% of $70, which equals $21. Therefore, the contribution margin per unit is $70 - $21 = $49.
To cover the fixed costs and earn the desired income, the total contribution margin needed is fixed costs plus target profit, which is $12,000 + $30,000 = $42,000. To find the required sales volume, we divide the total contribution margin needed by the contribution margin per unit. Required sales volume = $42,000 / $49 = approximately 857.14 units. To turn this into the dollar volume, we multiply the number of units by the selling price per unit: 857.14 units * $70 = $60,000.