Use the following information about Rat Race Home Security, Inc. to answer the questions:

Average selling price per unit $310.

Variable cost per unit $188

Units sold 323

Fixed costs $9,427

Interest expense 17,586

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 -1.9 percent?

(You should calculate the degree of financial leverage first).

Round the answer to two decimals