13 This year, the company's sales has increased from $200,000 to $240,000 and its profit has increased by $12,000 compared to last year. The Degree of Operating Leverage (DOL) this year is 4.00. If the sales are expected to increase by 5% next year, how much profit does the company will make next year? . $ 14,400 . 18,000 . $ 18,900 D. $ 21,600 E. None of the above