Use the following information about Rat Race Home Security, Inc. to answer the questions: Average selling price per unit $313. Variable cost per unit $197 Units sold 496 Fixed costs $7,551 Interest expense 16,583 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 -4.6 percent? (You should calculate the degree of financial leverage first).