please explain how to get efn percentage

The most recent financial statements for Crosby, Incorporated, follow. Interest expense will remain constant; the tax rate and the dividend payout rate will also remain constant. Costs, other expenses. current assets, fixed assets. and accounts payable increase spontaneously with sales. Complete the pro forma income statements below. (Input all answers as positive volues. Do not round intermediate colculotions and round your answers to the nearest whole number, e.9. 32.) Calculate the EFN for 20,25 and 30 percent growih rates. (Do not round intermediate colculations and round your answers to the nearest whole number, e.g., 32. A negatlve answer should be indicated by a minus sign.)