Formulas
Future Value FactorFVF = (1+r)^t
Present Value FactorPVF = 1/FVF
Present Value Interest FactorPVIFA(r,t) = (1-PVF)/r
Annuity Present ValueAPV = dollars per period * PVIFA
Annuity Future Value FactorAFVFA = (FVF-1)/r
Annuity Future ValueAFV = dollars per period * AFVFA
Annuity Due Future ValueADFVA = Ordinary Annuity Value * (1+r)
Effective Annual RateEAR = [1+(quoted rate)/m]^m -1 (m = compounds per year)
Bond ValueBV = Present Value of Coupons*PVIFA + F/FVF (percent value of face amount)

Earnings Per Share (EPS) = Net Income / total shares outstanding
Dividends Per Share = total Dividends / total shares outstanding

Average Tax Rate = Total taxes paid / total taxable income
Marginal Tax Rate = Amount of tax payable on the next dollar earned
Flat Tax Rate is the same percentage for entire income. with a flat tax, the
Average and Marginal tax rate are the same.
	.15 ($50,000  - $0)
	.25 ($75,000  - $50,000)
	.34 ($100,000 - $75,000)
	.39 ($200,000 - $100,000)

Marginal tax rate pays percentages as the money steps up, flat rate pays the
bracket percentage on the entire income.

Cash Flow