Based on the segment margin report below which region (central, east coast, international, midwest, northeast, northwest and south) should be dropped or restructured and why?

Question 6: Segment Margin Report For Year ended 2018 Central East coast International Midwest Northeast Northwest South West Total of all regions Sales revenue $ 19,728,462.06 $ 25,720,079.45 $3,515,310.29 $32,648,044.24 $ 13,182,382.46 $ 17,394,702.40 $ 15,855,637.70 $ 26,940,359.91 $154,984,978.51 Less variable expenses $ 12,526,495.00 $ 15,615,559.28 $2,139,542.75 $19,821,849.53 $ 8,020,092.37 $ 10,510,174.34 $ 9,661,516.71 $ 16,323,563.60 $ 94,618,793.58 Contribution margin $ 7,201,967.06 $ 10,104,520.17 $1,375,767.54 $12,826,194.71 $ 5,162,290.09 $ 6,884,528.06 $ 6,194,120.99 $ 10,616,796.31 $ 60,366,184.93 Less traceable fixed expenses $ 5,278,312.00 $ 7,513,545.00 $ 690,587.00 $9,874,330.00 $ 3,965,187.00 $ 4,968,774.00 $ 6,849,541.00 $ 9,065,478.00 $ 48,205,754.00 Segment margin $ 1,923,655.06 $ 2,590,975.17 $ 685,180.54 $ 2,951,864.71 $ 1,197,103.09 $ 1,915,754.06 -$ 655,420.01 $ 1,551,318.31 $ 12,160,430.93 Less common fixed costs allocated to regions $ 1,219,464 $ 1,589,821 S 217,290$ 2.018,055$ 814,835 $ 1,075,209 $ 980,076 $ 1,665,250 $9,580,000.00 Operating income (loss) $ 704,191.06 $ 1,001,154.17 $ 467,890.54 $ 933,809.71 $ 382,268.09 $ 840,545.06 $ 1,635,496.01 $ 113,931.69 $ 2,580,430.93