Jalonen Inc, which produces and sells a single product, has provided the following contribution format income statement for October. Required: Redo the company's contribution format income statement assuming that the company sells 4, 500 units. Iron Decor manufactures decorative iron railings. In preparing for next year's operations, management has developed the following estimates. Required: Compute the following items. a. Unit contribution margin. b. Contribution margin ratio. c. Break-even in dollar sales. d. Margin of safety percentage. e. If the sales volume increases by 20% with no change in total fixed expenses, what will be the change in net operating income? f. If the per unit variable production costs increase by 15%, and if fixed selling and administrative expenses increase by 12%, what will be the new break-even point in dollar sales