Tobin supplies come expects sales next year to be 340000

Tobin Supplies Company expects sales next year to be $340,000. Inventory and accounts receivable will increase $80,000 to accommodate this sales level. The company has a steady profit margin of 15 percent with a 40 percent dividend payout How much external financing will Tobin Supplies Company have to seek? Assume there is no increase in liabilities other than that which will occur with the external financing. Extemal funds needed