Question marksi Kelowna Stores is a retailer in British Columbia. The most recent monthly income statement for Northem Stores is given below: Total Store 1 Store II Sales $2,100,000 $1,300,000 $800,000 Less variable expense 1.260,000 $882,000 378,000 Contribution margin $840,000 $418,000 $422,000 Less traceable fixed expense 420.000 231 000 189,000 Segment margin $420,000 5187,000 $233,000 Less common fixed expense 350,000 210,000 140,000 Operating Income $70,000 $23,000 $93.000 Kelowna is considering closing Store 1. If Store lis closed, one-fourth of its traceable fixed expenses would continue to be incurred. Also, the closing of Store would result in a 20% decrease in sales in Store II, Northern allocates common fixed expenses on the basis of sales dollars and none of these costs would be saved if a store were shut down Required: Compute the overall increase or decrease in the operating income of Northern Stores if Store l is closed