Sharon Brian sells gourmet chocolate chip cookies. The results of her last month of operations are as follows: $ 64,000 24,000 Sales revenue Cost of goods sold (all variable) Gross margin Selling expenses (70% variable) Administrative expenses (20% variable) Operating income 40.000 8,000 12,000 $ 20,000 (a) What is Sharon's degree of operating leverage? (Round answer to 2 decimal places, eg. 52.75.) Operating leverage eTextbook and Media