3. The most recent monthly income statement for Grant Stores is given below: Sales. Total Store A 1,500,000 $600,000 Store B $900,000 Variable expenses.. Contribution margin. Traceable fixed expenses. Store segment margin.... Common fixed expenses... Net operating income. 450,000 750,000 300,000 750,000 300,000 450,000 500,000 150,000 350,000 250,000 150,000 100,000 200,000 80,000 120,000 50,000 $70.000 ($ 20.000) Due to its poor showing, consideration is being given to closing Store B. Studies show that if Store B is closed, one-fourth of its traceable fixed expenses will continue unchanged. The studies also show that closing Store B would result in a 25 percent increase in sales in Store A. The company allocates common fixed expenses to the stores on the basis of sales dollars. Compute the overall increase or decrease in the company's operating income if Store B is closed. Show your work! (14 PTS)