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  2. Mathematics of bookmaking - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_bookmaking

    Decimal odds are a single value, greater than 1, representing the amount to be paid out for each unit bet. For example, a bet of £40 at 6 − 4 (fractional odds) will pay out £40 + £60 = £100. The equivalent decimal odds are 2.5; £40 × 2.5 = £100. We can convert fractional to decimal odds by the formula D = (b + a)⁄b.

  3. DuPont analysis - Wikipedia

    en.wikipedia.org/wiki/DuPont_analysis

    DuPont analysis (also known as the DuPont identity, DuPont equation, DuPont framework, DuPont model, DuPont method or DuPont system) is a tool used in financial analysis, where return on equity (ROE) is separated into its component parts. Useful in several contexts, this "decomposition" of ROE allows financial managers to focus on the key ...

  4. Factor of safety - Wikipedia

    en.wikipedia.org/wiki/Factor_of_safety

    The margin of safety is sometimes, but infrequently, used as a percentage, i.e., a 0.50 M.S is equivalent to a 50% M.S. When a design satisfies this test it is said to have a "positive margin", and, conversely, a "negative margin" when it does not.

  5. Fractional-reserve banking - Wikipedia

    en.wikipedia.org/wiki/Fractional-reserve_banking

    The money multiplier, m, is the inverse of the reserve requirement, R: [26] m = 1 R . {\displaystyle m={\frac {1}{R}}.} In countries where the central bank does not impose a reserve requirement, such as the United States, Canada and the United Kingdom, the theoretical money multiplier is undefined, having a denominator of zero.

  6. Grant Cardone Swears by the 40/40/20 Rule: ‘I ... - AOL

    www.aol.com/finance/grant-cardone-swears-40-40...

    The 40/40/20 rule comes in during the saving phase of his wealth creation formula. Cardone says that from your gross income, 40% should be set aside for taxes, 40% should be saved, and you should ...

  7. Margin (finance) - Wikipedia

    en.wikipedia.org/wiki/Margin_(finance)

    Margin (finance) In finance, margin is the collateral that a holder of a financial instrument has to deposit with a counterparty (most often their broker or an exchange) to cover some or all of the credit risk the holder poses for the counterparty. This risk can arise if the holder has done any of the following:

  8. Gross margin - Wikipedia

    en.wikipedia.org/wiki/Gross_margin

    In a more complex example, if an item costs $204 to produce and is sold for a price of $340, the price includes a 67% markup ($136) which represents a 40% gross margin. This means that 40% of the $340 is profit. Again, gross margin is just the direct percentage of profit in the sale price. In accounting, the gross margin refers to sales minus ...

  9. Customer lifetime value - Wikipedia

    en.wikipedia.org/wiki/Customer_lifetime_value

    When retention equals 1, the customer is always retained, and the firm receives the margin in perpetuity. The present value of the margin in perpetuity turns out to be the Margin divided by the Discount Rate. For retention values in between, the CLV formula tells us the appropriate multiplier. [2]