finance_tools 0.1

Common financial calculations
finance_tools is a set of common financial calculations.

Usage:

pv(cash_flow, period, cost_of_capital)

Arguments:

** cash_flow: this is self-explanatory, it's the amount of cash flowing in or out

** period: the period in which this cash flow occurs. It should match the cost_of_capital's period. For example, if you're paying an quarterly interest rate of 5%, your cash_flow should be a quarterly number and your cost_of_capital should be .05.

** cost_of_capital[2]: The weighted average cost of capital for your business. If you're capital structure is 50% debt and 50% equity, you would calculate your cost_of_capital by evently weighting your interest rate on debt and expected rate of return on equity. If you are simply seeing how much a certain amount of cash will be worth in the future, the cost_of_capital is the risk-free interest rate, a good proxy for that is the rate of a short-term government bond because theoretically, those have no risk of default[4].

Output: the present value of the cash flow.

Sample: the value of recieving $100 in 2 years, assuming an annual risk-free interest rate of 3%:

    >>> from finance_tools import pv
    >>> pv(100, 2, .03)
    94.25959091337543

last updated on:
April 12th, 2012, 14:27 GMT
price:
FREE!
developed by:
Zain Allarakhia
license type:
Other/Proprietary License
category:
ROOT \ Office \ Finance

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