Answer:
b. $(132,000)
Explanation:
                                 west
Sales                            478500    Â
less: variable costs                 327300
Contribution margin                151200
less: Traceable fixed costs           147600
Effect on net operating income        3600
company present net operating
loss is  (-159600 + 31200)          -128400   Â
less: Dropping the west Division
would reduce net operating
income by                         3600
The overall company net
operating loss would be           -132000