HP 12c Solutions Handbook page 162

•
mean
X =
•
standard deviation
•
standard error
Personal Finance
Tax-Free Retirement Account (IRA) or Keogh Plan
• n = the number of years to retirement.
• i = the compunded annual interest.
• PMT = the earnings used for investment (and taxes).
• FV= future value.
• tax= the percent tax expressed as a decimal.
For ordinary taxable investment:
•
PMT
FV = ----------------------- - 1
i 1 tax
–
For tax-free investment:
•
PMT
FV = ------------ - 1
i
Stock Portfolio Evaluation and Analysis
• n = the number of issues held.
• P = the current market price / share of a stock.
i
• S = the number of shares of a stock held.
i
• = the beta coefficient of an individual stock.
i
• T = the total present value of a portfolio.
f x
i i
---------- -
f
i
S =
-------------------------------------
x
S = f
x
i
+ i 1 tax
–
n 1
–
+ i 1 i +
2
2
f x – f X
i i i
f – 1
i
n
1 + i 1 tax
–
161
1
–