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  2. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    For example, the conversion factor between a mass fraction of 1 ppb and a mole fraction of 1 ppb is about 4.7 for the greenhouse gas CFC-11 in air (Molar mass of CFC-11 / Mean molar mass of air = 137.368 / 28.97 = 4.74). For volume fraction, the suffix "V" or "v" is sometimes appended to the parts-per notation (e.g. ppmV, ppbv, pptv).

  3. Value-added tax - Wikipedia

    en.wikipedia.org/wiki/Value-added_tax

    In Iceland, VAT is 24% for most goods and services. An 11% rate is applied for hotel and guesthouse stays, licence fees for radio stations (namely RÚV), newspapers and magazines, books; hot water, electricity and oil for heating houses, food for human consumption (but not alcoholic beverages), access to toll roads and music. [79]

  4. 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 ...

  5. Labeling of fertilizer - Wikipedia

    en.wikipedia.org/wiki/Labeling_of_fertilizer

    In the U.K., fertilizer labeling regulations allow for reporting the elemental mass fractions of phosphorus and potassium.The regulations stipulate that this should be done in parentheses after the standard N-P-K values, as in "15-30-15 (15-13-13)".

  6. Alcohol by volume - Wikipedia

    en.wikipedia.org/wiki/Alcohol_by_volume

    Change in volume with increasing alc/vol. Mixing two solutions of alcohol of different strengths usually causes a change in volume. Mixing pure water with a solution less than 24% by mass causes a slight increase in total volume, whereas the mixing of two solutions above 24% causes a decrease in volume.

  7. Value-added tax in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Value-added_tax_in_the...

    [4] [7] [11] The additional revenue was used to pay for a reduction in the hugely unpopular community charge (the "poll tax"). [11] During the 1992 general election the Conservatives promised not to extend the scope of VAT but in March 1993, Lamont announced that domestic fuel and power, which had previously been zero-rated, would have VAT ...

  8. List of countries by percentage of population living in poverty

    en.wikipedia.org/wiki/List_of_countries_by...

    11.8% 2022 Puerto Rico: Latin America & Caribbean High income N/A North Korea: East Asia & Pacific Low income N/A Portugal: Europe & Central Asia High income 16.4% 2021 Paraguay: Latin America & Caribbean Upper middle income 24.7% 2022 Palestine: Middle East & North Africa Lower middle income N/A French Polynesia: East Asia & Pacific

  9. List of countries by English-speaking population - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    English is one of the official languages under the constitution and is commonly used in education and administration. [8] [9] [10] According to statistics from various sources, the English-speaking population ranges from 88.69 million [11] to 108 million, [12] [13] accounting for 49% to 58% of the total population. [14] [15] United Kingdom ...