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 here in order to copy the contents of the datatable below into a spreadsheet) Current market price per share $61.00 Projected Dividend dividend per growth rate share next year $3,05 Underpricing Flotation cost per share per share 700 $2.50 a. The cost of retained earnings is b. The cost of new common stock is % (Round to two decimal places.) % (Round to two decimal places)