KGB Inc. distributes a high$-$quality deck box that sells for $$24$ per unit. Variable expenses are $$12$ per unit, and fixed expenses total $$200,000$ per year. Its operating resulls for last year were as follows:$18$Sales $(21,000$ unit.....Variable$$504,000$expenses...Contribution$252,000$margin.Fixed$$252,000$expenseOperating$200,000$income,$$52,0001$Required:$1.$ Compute the company's contribution margin $($CM$)$ allo and its break even point in dollar sales $3$ marks$)2.$ Assume this year's total sales increase by $$50,000.$ Il the fixed expenses do not erange. how much will operating income increase? $(1$ mark$)3.$ Assuming that the operating results for last year were as above: $(9$ manic$)$Compute the degree of operating leverage based on last year's sales $($Round your arou to $2$ decimal places$).$o$.$ Thepresident expects sales to increase by $20\%$ next year. Using the degree of operaig leverage from last year, what percentage increase in opprating inose wil the company realize this year? Calculate the dollar increase in operaing income.