Bolka Corporation, a merchandising company, reported the following results for October: Sales$416,000 Cost of goods sold (all variable)$177,700 Total variable selling expense$23,800 Total fixed selling expense$21,600 Total variable administrative expense$16,700 Total fixed administrative expense$32,000 The contribution margin for October is:Bolka Corporation, a merchandising company, reported the following results for October: Sales$416,000 Cost of goods sold (all variable)$177,700 Total variable selling expense$23,800 Total fixed selling expense$21,600 Total variable administrative expense$16,700 Total fixed administrative expense$32,000 The contribution margin for October is: