Retained earnings questions | Business Finance homework help

The following data applies to Crunch Cookie Company:
 
Income Statement
Sales: $1,000,000
Operating Expenses: (626,000)
EBIT: 374,000
Interest: (24,000)
EBT: 350,000
Taxes @40%: (140,000)
Net Income: 210,000
 
Year       Net Income        Per Share
1988       $210,000              3.50
1987       195,000                3.25
1986       180,000                3.00
1985       167,000                2.75
1984       155,000                2.60
1983       143,500                2.40
1982       132,500                2.20
 
Assets
Current $300,000
Fixed $600,000
Total $900,000
 
Liabilities and Owners’ Equity
Bonds ($1000 par) $300,000
Common Stock ($20par) $300,000
Retained Earnings $300,000
Total $900,000
 
Bond Price $687                Common Stock Price $54
 
Common Stock costs $5 per share to issue, floatation cost for bonds is 5% and the bonds have ten years to maturity. Assume the growth rate in earnings and dividends to be constant over time and the payout rate to be the same as in the previous year.
A.      What is the expected earnings and expected retained earnings for 1989?
B.      What is Crunch’s weighted average cost of capital with retained earnings? Without retained earnings?
C.      At what level of total financing will the WACC increase?
D.      In order to estimate the weighted average cost of capital we need to make certain assumptions. What are these assumptions and explain why we need to make them.