the company sold 25,000 units in the east region and 10,000 units in the west region. it determined that $250,000 of its fixed selling and administrative expense is traceable to the west region, $150,000 is traceable to the east region, and the remaining $96,000 is a common fixed expense. the company will continue to incur the total amount of its fixed manufacturing overhead costs as long as it continues to produce any amount of its only product. prepare a contribution format segmented income statement that includes a total column and columns for the east and west regions.