Decrease to/by a doupling

Sako_Hoang29

Sako_Hoang29

Member
Tasmania, Australia
Vietnamese
Hi everyone,

I'm in little confusion regarding the use of the term 'a doubling' in describing graphs. I'm aware that it's generally acceptable to say, 'the price of cars increases by a doubling between 2000 and 2004' assuming that of cars in 2000, for example, is $2000, and in 2004, exactly $4000. However, how would we use the term when the rise is nearly 50% (49% for instance) or more than 50% (52% for example). The sentences below are the examples for which I need validation. I'd be deeply grateful if someone could assist me in resolving the matter.

A decrease of more than 50%
  • The amount of electricity consumed fell by almost a doubling from 19,000 units in 1998 to 10,000 units in 2000 (nearly a 50% decline).

  • The amount of electricity consumed rose from 2000 units in 2004 to nearly/ almost a doubling of 3900 units in 2008 (nearly a 50% increase).

An increase of more than 50%
  • The amount of electricity consumed rose by more than/ over a doubling from 4000 units in 2010 to 8100 units in 2014.

  • The amount of electricity consumed rose from 10,000 units in 1998 to more than/ over a doubling of 21,000 units in 2000.
Click to expand...

Thanks in advance.
 
    • Sako_Hoang29 said:
    I'm aware that it's generally acceptable to say, 'the price of cars increases by a doubling between 2000 and 2004'
    Click to expand...


    Where have you seen 'increases by a doubling' used like this? It doesn't sound natural to me. Far more natural would be 'The price of cars doubled between . . . '.

    And so 'almost doubled' and 'more than doubled' would work in your two contexts.
     
    Sako_Hoang29 said:
    by a doubling
    Click to expand...
    I've never heard phrase that used in American English. You can use the verb "to double" or the phrase "by double" as shown below. We also say "double the amount".

    Sako_Hoang29 said:
    The amount rose from 2000 units in 2004 to nearly/ almost a doubling of 3900 units in 2008 :cross:
    Click to expand...
    The amount almost doubled, rising from 2000 units in 2004 to nearly 3900 units in 2008 :tick:
    The amount more than doubled, rising from 2000 units in 2004 to nearly 4100 units in 2008 :tick:
    The amount rose by almost double, from 2000 units in 2004 to nearly 3900 units in 2008 :tick:
    The amount rose by more than double, from 2000 units in 2004 to nearly 4100 units in 2008 :tick:
     
    dojibear said:
    I've never heard phrase that used in American English. You can use the verb "to double" or the phrase "by double" as shown below. We also say "double the amount".


    The amount almost doubled, rising from 2000 units in 2004 to nearly 3900 units in 2008 :tick:
    The amount more than doubled, rising from 2000 units in 2004 to nearly 4100 units in 2008 :tick:
    The amount rose by almost double, from 2000 units in 2004 to nearly 3900 units in 2008 :tick:
    The amount rose by more than double, from 2000 units in 2004 to nearly 4100 units in 2008 :tick:
    Click to expand...

    Appreciate it dojibear. I've not seen them on newspapers either since I do not read them much, but it's just a somewhat usual thing in statistics sample essays for the IELTS test that I've seen online.
     
    The amount of electricity consumed rose from 2000 units in 2004 to nearly/ almost a doubling of 3900 units in 2008 (nearly a 50% increase).
    Click to expand...
    Your question has already been answered, but a doubling is a 100% increase, not 50%.

    The amount of electricity consumed rose from 2000 units in 2004 to 2900 units in 2008, nearly half again as many units (nearly a 50% increase).
     
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