een experiencing losses for some time, as shown by its most recent monthly contribution format income statement: Sales $ 1,589,000 Variable expenses 616,020 Contribution margin 972,980 Fixed expenses 1,070,000 Net operating income (loss) $ (97,020) In an effort to resolve the problem, the company would like to prepare an income statement segmented by division. Accordingly, the Accounting Department has developed the following information: Division East Central West Sales $ 369,000 $ 700,000 $ 520,000 Variable expenses as a percentage of sales 58 % 24 % 45 % Traceable fixed expenses $ 292,000 $ 332,000 $ 207,000 Required: 1. Prepare a contribution format income statement segmented by divisions. 2-a. The Marketing Department has proposed increasing the West Division's monthly advertising by $21,000 based on the belief that it would increase that division's sales by 18%. Assuming these estimates are accurate, how much would the company's net operating income increase (decrease) if the proposal is implemented