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  2. Runoff curve number - Wikipedia

    en.wikipedia.org/wiki/Runoff_curve_number

    B Poor: <50% ground cover; Fair: 50-75% ground cover; Good: >75% ground cover. C Actual curve number is less than 30; use CN = 30 for runoff computation. D CN's shown were computed for areas with 50% woods and 50% grass (pasture) cover. Other combinations of conditions may be computed from the CN's for woods and pasture.

  3. Fuel fraction - Wikipedia

    en.wikipedia.org/wiki/Fuel_fraction

    The Rutan Voyager took off on its 1986 around-the-world flight at 72 percent, the highest figure ever at the time. [17] Steve Fossett 's Virgin Atlantic GlobalFlyer could attain a fuel fraction of nearly 83 percent, meaning that it carried more than five times its empty weight in fuel.

  4. Pi - Wikipedia

    en.wikipedia.org/wiki/Pi

    The number π (/ p aɪ /; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159.The number π appears in many formulae across mathematics and physics.

  5. Employment-to-population ratio - Wikipedia

    en.wikipedia.org/wiki/Employment-to-population_ratio

    In general, a high ratio is considered to be above 70 percent of the working-age population whereas a ratio below 50 percent is considered to be low. The economies with low ratios are generally situated in the Middle East and North Africa. Employment-to-population ratios are typically higher for men than for women.

  6. Rate of return - Wikipedia

    en.wikipedia.org/wiki/Rate_of_return

    This means that an investment of $100 that yields an arithmetic return of 50% followed by an arithmetic return of −50% will result in $75, while an investment of $100 that yields a logarithmic return of 50% followed by a logarithmic return of −50% will come back to $100. Logarithmic return is also called the continuously compounded return.

  7. Percent sign - Wikipedia

    en.wikipedia.org/wiki/Percent_sign

    English style guides prescribe writing the percent sign following the number without any space between (e.g. 50%). [sources 1] However, the International System of Units and ISO 31-0 standard prescribe a space between the number and percent sign, [8] [9] [10] in line with the general practice of using a non-breaking space between a numerical value and its corresponding unit of measurement.

  8. Fred Wilpon - Wikipedia

    en.wikipedia.org/wiki/Fred_Wilpon

    In the resulting settlement, Doubleday and Wilpon agreed to purchase the Mets for $81 million, with each holding a 50 percent stake. [2] In 2002, the Wilpon family purchased the remaining 50% of the Mets from Doubleday for $391 million, giving Wilpon sole ownership of the Mets. Wilpon served as president of the team between 1980 and 2002, CEO ...

  9. Basis point - Wikipedia

    en.wikipedia.org/wiki/Basis_point

    A related concept is one part per ten thousand, ⁠ 1 / 10,000 ⁠.The same unit is also (rarely) called a permyriad, literally meaning "for (every) myriad (ten thousand)". [4] [5] If used interchangeably with basis point, the permyriad is potentially confusing because an increase of one basis point to a 10 basis point value is generally understood to mean an increase to 11 basis points; not ...