The following is Atari Corporation's contribution format income statement for last month: Sales: $1,500,000 Variable Expenses: $900,000 Contribution Margin: $ 79777? Fixed Expenses: $400,000 Net Operating Income: $ 777777 The company has no beginning or ending inventories. The company produced and sold 12,500 units last month. If the Company's Sales Increased by 20%, what is the percentage increase in the Company's Operating Income? 30.53% b. 396 e 40% 60%