4. How much sales are required to earn a target income of $180,000 if total fixed costs are $210,000 and the contribution margin ratio is 30%? 1 5. Cost of goods sold is $220,000 variable and $100,000 fixed. The company's selling and administrative expenses are $100,000 variable and $60,000 fixed. if the company's sales is $780,000, what is its contribution margin? 4. How much sales are required to earn a target income of $180,000 if total fixed costs are $210,000 and the contribution margin ratio is 30%? 1 5. Cost of goods sold is $220,000 variable and $100,000 fixed. The company's selling and administrative expenses are $100,000 variable and $60,000 fixed. if the company's sales is $780,000, what is its contribution margin