Use the following information about Rat Race Home Security, Inc. to answer the questions: Average selling price per unit $314. Variable cost per unit $183 Units sold 487 Fixed costs $5,375 Interest expense 18,040 Based on the data above, what will be the resulting percentage change in earnings per share of Rat Race Home Security, Inc. if they expect operating profit to change 6.1 percent? (You should calculate the degree of financial leverage first). Write the percentage sign in the "units" box).