Plymouth Company reports the following information for June ! Click the icon to view the amounts) 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, Solect the labels and enter the amounts to compute the operating income. Variable Costing Contribution Margin Operating Income Net Sales Revenue $ 735,000 Variable Cost of Goods Sold 220,000 Fixed Cost of Goods Sold 194,000 162,000 Variable Selling and Administrative Costs Fixed Selling and Administrative Costs 67,000