lexington company reports the following information for june: net sales revenue 775,000 variable cost of goods sold 230,000 fixed costs of goods sold 180,000 variable selling and administrative costs 172,000 fixed selling and administrative costs 77,000. calculate the contribution margin and operating income for june using variable costing. begin by selecting the labels and entering the amounts to compute the contribution margin. then, select the labels and enter the amounts to compute the operating income.