Cullumber Company's selling price is $ 128, variable costs are 60% of sales, and fixed costs total $ 76,800. At a $ 512,000 sales level, what is Cullumber's degree of operating leverage? (Round answer to 2 decimal places, e.g. 1.64.) Cullumber's degree of operating leverage If sales volume increases by 10%, what will be the amount of increase in operating income? (Round answer to O decimal places, e.g. 16,405.) Increase in operating income ta $