Bolka Corporation, a merchandising company, reported the following results for October: Sales 5 410, 000 Cost of goods sold (all variable) $ 173, 900 Total variable selling expense 21, 200 Total fixed selling expense 20, 500 Total variable administrative expense 8, 900 5:16 Total fixed administrative expense 31, 000 The contribution margin for October is: Multiple Choice O $206,000 O $154,500