Retained earnings versus new common stock Using the data for a firm shown in the following table, calculate the cost of retained earnings and the cost of new common stock using the constant-growth valuation model. (Click on the icon located on the top-right corner of the data table below in order to copy its contents into a spreadsheet.) Projected dividend per share next year Current market price per share Dividend Underpricing per share Flotation cost growth rate per share $65.00 $3.90 $1.75 6% $1.00 a. The cost of retained earnings is . (Round to two decimal places.) %. (Round to two decimal places. b. The cost of new common stock is