please show all equations used in the cells, NOT just answers

Q1	Internal financial planners forecast Wooten Sims LLC's sales to increase by 4% next year
	Current sales are $562 million
	Total operating assets in the current period are 1,200 million ($1.2 billion)
	In the current period, short term debt is $75 million, accounts payable is $80 million, and accruals are $100 million
	The firm's profit margin is 15% and expected to remain stable
	The firm pays out 60% of its earnings each period as dividends
Q1a	Under the current forecast, what is the dollar amount of Additional Funds Needed?
Q1b	How much external capital would the firm have to raise to make the plan work?
Q1c	Does the forecast seem reasonable based on the AFN value and what you know about the size of the firm?