Data for January for Ellis Corporation and its two major business segments, North and South, appear below: Sales revenues, North $ 660,000 Variable expenses, North $ 383,000 Traceable fixed expenses, North $ 79,000 Sales revenues, South $ 510,000 Variable expenses, South $ 291,000 Traceable fixed expenses, South $ 66,000 In addition, common fixed expenses totaled $200,000 and were allocated as follows: $90,000 to the North business segment and $110,000 to the South business segment. A properly constructed segmented income statement in a contribution format would show that the net operating income of the company as a whole is: $ 172,000 $496,000 $351,000 $ 151,000