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  2. Rule of 72 - Wikipedia

    en.wikipedia.org/wiki/Rule_of_72

    In finance, the rule of 72, the rule of 70[1] and the rule of 69.3 are methods for estimating an investment 's doubling time. The rule number (e.g., 72) is divided by the interest percentage per period (usually years) to obtain the approximate number of periods required for doubling. Although scientific calculators and spreadsheet programs have ...

  3. Compound interest - Wikipedia

    en.wikipedia.org/wiki/Compound_interest

    5%. 4%. 3%. 2%. 1%. The interest on corporate bonds and government bonds is usually payable twice yearly. The amount of interest paid every six months is the disclosed interest rate divided by two and multiplied by the principal. The yearly compounded rate is higher than the disclosed rate.

  4. Rate of return - Wikipedia

    en.wikipedia.org/wiki/Rate_of_return

    This is a return of US$20,000 divided by US$100,000, which equals 20 percent. The US$20,000 is paid in 5 irregularly-timed installments of US$4,000, with no reinvestment, over a 5-year period, and with no information provided about the timing of the installments. The rate of return is 4,000 / 100,000 = 4% per year.

  5. Payback period - Wikipedia

    en.wikipedia.org/wiki/Payback_period

    Payback period. Payback period in capital budgeting refers to the time required to recoup the funds expended in an investment, or to reach the break-even point. [1] For example, a $1000 investment made at the start of year 1 which returned $500 at the end of year 1 and year 2 respectively would have a two-year payback period.

  6. How To Calculate Return on Investment (ROI) - AOL

    www.aol.com/calculate-return-investment-roi...

    This investment had a negative 40% ROI in two and a half years. Return on Investment and Time. The basic ROI calculation does not consider the amount of time the investment is held. If you only ...

  7. Day count convention - Wikipedia

    en.wikipedia.org/wiki/Day_count_convention

    Day count convention. In finance, a day count convention determines how interest accrues over time for a variety of investments, including bonds, notes, loans, mortgages, medium-term notes, swaps, and forward rate agreements (FRAs). This determines the number of days between two coupon payments, thus calculating the amount transferred on ...

  8. Internal rate of return - Wikipedia

    en.wikipedia.org/wiki/Internal_rate_of_return

    Internal rate of return (IRR) is a method of calculating an investment 's rate of return. The term internal refers to the fact that the calculation excludes external factors, such as the risk-free rate, inflation, the cost of capital, or financial risk. The method may be applied either ex-post or ex-ante. Applied ex-ante, the IRR is an estimate ...

  9. Equivalent annual cost - Wikipedia

    en.wikipedia.org/wiki/Equivalent_annual_cost

    Equivalent annual cost. In finance, the equivalent annual cost (EAC) is the cost per year of owning and operating an asset over its entire lifespan. It is calculated by dividing the negative NPV of a project by the "present value of annuity factor": where r is the annual interest rate and. t is the number of years.