QUESTION 13 Serie Inc. reported the following results from last year's operations: Sales Variable expenses Contribution margin Fixed expenses Net operating income Average operating assets At the beginning of this year, the company has a $2,100,000 investment opportunity with the following characteristics: $ 16,800,000 10,640,000 6,160,000 5,488,000 $7,000,000 Sales Contribution margin ratio Fixed expenses The margin for this year's investment opportunity considered alone is closest to: 2,520,000 50% of sales 1,108,800 44.0% 50.0% o 6.0% 56.0%