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  2. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    In general, if an increase of x percent is followed by a decrease of x percent, and the initial amount was p, the final amount is p (1 + 0.01 x)(1 − 0.01 x) = p (1 − (0.01 x) 2); hence the net change is an overall decrease by x percent of x percent (the square of the original percent change when expressed as a decimal number).

  3. 68–95–99.7 rule - Wikipedia

    en.wikipedia.org/wiki/68–95–99.7_rule

    3 in 5 Four or five times a week μ ± σ: 0.682 689 492 137 086 [5] 0.3173 = 31.73 % 1 in 3 Twice or thrice a week μ ± 1.5σ: 0.866 385 597 462 284: 0.1336 = 13.36 % 2 in 15 Weekly μ ± 2σ: 0.954 499 736 103 642 [6] 0.045 50 = 4.550 % 1 in 22 Every three weeks μ ± 2.5σ: 0.987 580 669 348 448: 0.012 42 = 1.242 % 1 in 81 Quarterly μ ± ...

  4. Relative change - Wikipedia

    en.wikipedia.org/wiki/Relative_change

    A percentage change is a way to express a change in a variable. It represents the relative change between the old value and the new one. [6]For example, if a house is worth $100,000 today and the year after its value goes up to $110,000, the percentage change of its value can be expressed as = = %.

  5. Percentage point - Wikipedia

    en.wikipedia.org/wiki/Percentage_point

    A percentage point or percent point is the unit for the arithmetic difference between two percentages. For example, moving up from 40 percent to 44 percent is an increase of 4 percentage points (although it is a 10-percent increase in the quantity being measured, if the total amount remains the same). [ 1 ]

  6. Decimal - Wikipedia

    en.wikipedia.org/wiki/Decimal

    Decimal fractions (sometimes called decimal numbers, especially in contexts involving explicit fractions) are the rational numbers that may be expressed as a fraction whose denominator is a power of ten. [8] For example, the decimal expressions ,,,, represent the fractions ⁠ 4 / 5 ⁠, ⁠ 1489 / 100 ⁠, ⁠ 79 / 100000 ⁠, ⁠ + 809 / 500 ...

  7. Savings interest rates today: 'Tis the season for saving at ...

    www.aol.com/savings-interest-rates-today-tis-the...

    6-month CD. 1.65%. 1.68%. Down 3 basis points. 12-month (1 year) CD ... passing along overhead savings in the form of high yields — more than 10 times the national average when compared to a ...

  8. Millions of people may get expanded Social Security benefits ...

    www.aol.com/millions-people-may-expanded-social...

    The agency also operates a toll-free hotline — 1-800-772-1213 — and will schedule in-person meetings at one of hundreds of Social Security offices around the country.

  9. K.C. Turner - Pay Pals - The Huffington Post

    data.huffingtonpost.com/paypals/kathryn-c-turner

    From January 2008 to May 2012, if you bought shares in companies when K.C. Turner joined the board, and sold them when she left, you would have a -36.3 percent return on your investment, compared to a -4.2 percent return from the S&P 500.