Bolka Corporation, a merchandising company, reported the following results for October: Sales $ 433,000 Cost of goods sold (all variable) $ 174,800 Total variable selling expense $ 25,600 Total fixed selling expense $ 15,100 Total variable administrative expense $ 14,800 Total fixed administrative expense $ 31,400 The contribution margin for October is: Multiple Choice $171,300 $258,200 $386,500 $217,800