Exetsheni Futed Selling and Administrative Overhead Variable Fued $100,000 550 $30.000 Required Compute the following items: 000 a. Contribution margin ratio. b. Break-even in dollar sales. c. Margin of safety percentage. d. If the sales volume increases by 20% with no change in total fixed expenses, what wilde the change in net operating income? e. If the per-unit variable production costs increase by 156, and if fixed selling and administrative expenses increase by 12%, what will be the new break-even point de la sales? rheproctoring online diola del Iron Decor manufactures decorative iron talling in management has developed the following estimates Sales (20,000 Units) SOOS Direct Materials 520000 Direct Labor (Variable) 53000 Manufacturing Overhead 570.000 Variable 50.000 Fixed $100.000 Selling and Administrative Overhead 530.000 Variable Fixed