The Optical Scam Company has forecast a sales growth rate of 20 percent for next year. The current financial statements are shown here: Income Statement Sales $ 31,400,000 Costs 26,461,300 Taxable income Taxes $ 4,938,700 1,728,545 Net income $ 3,210,155 1,284,062 Dividends Addition to retained earnings 1,926,093 Current assets Assets $ 7,300,000 Balance Sheet Liabilities and Equity Short-term debt $ 5,652,000 Long-term debt 5,024,000 Fixed assets 18,448,000 Common stock Accumulated retained earnings $ 3,166,000 11,906,000 Total equity $15,072,000 Total assets $25,748,000 Total liabilities and equity $ 25,748,000 a. Calculate the external financing needed for next year using the percent sales approach. (Do not round intermediate calculations and round your answer to the nearest whole number, e.g., 32.) External financing needed b-1. Prepare the firm's pro forma balance sheet for next year. (Do not round intermediate calculations and round your answers to the nearest whole number, e.g., 32.) Assets Current assets Balance Sheet Liabilities and equity Short-term debt Long-term debt Fixed assets Common stock Accumulated retained earnings Total equity Total assets Total liabilities and equity b-2. Calculate the external financing needed. (Do not round intermediate calculations and round your answer to the nearest whole number, e.g., 32.) External financing needed $ c. Calculate the sustainable growth rate for the company based on the current financial statements. (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Sustainable growth rate