Problem 5-15 Use of different formulas for operating leverage [LO5-3) U.S. Steal has the following income statement data: Total Units Variable Sold Costs 110,000 $ 330,000 130,000 390,000 Fixed Costa $90,000 90,000 Total Costs $ 420,000 480,000 Total Revenue $ 550,000 650,000 Operating Income (Loss) $ 130,000 170,000 The top row of the table has the beginning values and the bottom row of the table has the ending values. a. Compute the degree of operating leverage (DOL) based on the formula below. (Do not round intermediate calculations. Round your final answer to 2 decimal places.) DOL- Percent change in operating income Percent change in units sold Degree of operating leverage DOL rercent change in operating ancome Percent change in units sold Degree of operating leverage b. Recompute DOL using the formula given below. There may be a slight difference due to rounding. (Do not round intermediate calculations. Round your final answer to 2 decimal places.) OP - VC) QIP - VC) - YC Q represents beginning units sold (all calculations should be done at this level). P can be found by dividing total revenue by units sold. VC can be found by dividing total variable costs by units sold. DOL- Degree of operating leverage